Selenidostannate Explained

Selenidostannates are chemical compounds which contain anionic units of selenium connected to tin. They can be considered as stannates where selenium substitutes for oxygen. Similar compounds include the selenogermanates and thiostannates. They are in the category of chalcogenidotetrelates or more broadly chalcogenometallates.

Formation

Some selenidostannates can be made by treating tin diselenide (SnSe2) with an alkali selenide dissolved in water.[1] Other possible solvents include  choline chloride with 1,8-diaminooctane,[2]

Properties

Most selenidostannates are semiconductors. Their resistance drops on exposure to light. Also selenidostannates are often coloured, most often orange, red or yellow.

Many are unstable in humid air, as the water reacts with the selenidostannate to form hydrogen selenide (H2Se).

Use

Selenidostannates are primarily of research interest. They are under investigation as photoelectric materials.

List

namechemmwcrystal systemspace groupunit cell Åvolumedensitycommentreferences
tris(μ2-1,2-Diaminoethane)-1,2-diaminoethane-di-lithium triselenido-tin(iv)Li4Sn2Se6 · 8enmonoclinicC2/ca=22.660 b=9.449 c=20.336 β=101.24°[3]
diammonium[NH<sub>4</sub>]2Sn4Se9orthorhombicPnmaa =13.2274 b=12.4270 c=12.6102supertetrahedra Sn4Se10 arranged in layers[4]
bis(dimethylammonium) heptakis(μ-selenido)-tri-tin dimethylamine solvate[NH<sub>2</sub>(CH<sub>3</sub>)<sub>2</sub>]2Sn3Se7·0.5NH(CH3)2monoclinicC2/ca=23.5939 b=13.6409 c=15.0372, β=102.177°chains of Sn3Se8
tetrakis(ethylammonium) tetradecakis(μ-selenido)-hexa-tin[NH<sub>3</sub>C<sub>2</sub>H<sub>5</sub>]2Sn3Se7orthorhombicCmcaa=13.5561 b=24.0194 c=27.0184
bis(Ethylenediammonium) ethylenediamine bis((μ2-selenido)-diseleno-tin(iv))[enH<sub>2</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>] · entriclinicPa =8.636 b =11.044 c =6.613, α =104.48° β =110.76° γ =79.43°twin edge-bridged SnSe4 tetrahedra[5]
tetrakis(2-Aminoethylammonium) bis(μ2-selenido)-tetraselenido-di-tin(iv) 1,2-diaminoethane[''en''H]4[Sn<sup>IV</sup><sub>2</sub>Se<sub>6</sub>] · entriclinicPa=11.212 b=11.631 c=13.097, α=79.40° β=76.82° γ=64.82°[6]
catena(Ethylenediammonium hemiethylenediamine (μ3-selenido)-hexakis(μ2-selenido)-tri-tin(iv))[enH<sub>2</sub>][Sn<sub>3</sub>Se<sub>7</sub>]·0.5enorthorhombicFdd2a=23.597 b=27.563 c=13.877
catena-(tetrakis(μ2-Seleno)-ethylenediamine-di-tin(iv))[2 SnSe<sub>2</sub>·en]orthorhombicPca21a 1=3.724 b =11.866 c =13.647
[(C<sub>2</sub>H<sub>5</sub>)<sub>3</sub>NH]2Sn3Se7P2121212.12 eV
[(C<sub>2</sub>H<sub>5</sub>)<sub>3</sub>NH]2Sn3Se7·0.25H2OmonoclinicP21/n2.1 eV
(Et4N)2Sn3Se7monoclinicP21/ma=10.140 b=13.858 c=12.071, β=100.649°[7]
[NEt<sub>4</sub>]4[Sn<sub>4</sub>Se<sub>10</sub>]cubicP3na = 22.17010897[8]
bis(tetrapropylammonium) nonaselenidotetrastannate(IV)([C<sub>3</sub>H<sub>7</sub>]4N)2[Sn<sub>4</sub>Se<sub>9</sub>]monoclinicP21/na = 15.328, b = 19.058, c = 15.398, β = 97.947°, Z = 44454.7orange[9]
(C7N4OH16)2Sn3Se7·H2orthorhombicPbca
(NH3(CH2)8NH3)Sn3Se7triclinicP
Octane-1,8-diammonium (μ3-selena)-hexakis(μ2-selena)-tri-tin(NH3(CH2)8NH3)Sn3Se7triclinicPa=8.4419 b=11.6441 c=13.1857 α=66.636° β=77.989° γ=83.919°[10]
Decane-1,10-diammonium (μ3-selena)-hexakis(μ2-selena)-tri-tin(NH3(CH2)10NH3)Sn3Se7monoclinicC2/ca=23.726 b=13.910 c=15.954 β=111.915°
(NH3(CH2)10NH3)Sn3Se7monoclinicC2/c
tetrakis(1,2-dimethyl-3-propyl-1H-imidazol-3-ium) bis(μ3-selenido)-octadecakis(μ2-selenido)-nona-tinmonoclinicP21/ca =18.652 b=20.353 c=20.196 β=105.244°[11]
tetrakis(1,2-dimethyl-3-propyl-1H-imidazol-3-ium) dodecakis(μ2-selenido)-diselenido-hexa-tin[Mmpmim]4Sn6Se14monoclinicP21/ca=14.270 b=15.549 c=14.377 β=92.749°
bis(1,2-dimethyl-3-propyl-1H-imidazol-3-ium) (μ3-selenido)-hexakis(μ2-selenido)-tri-tin[Mmpmim]2Sn3Se7trigonalP3221a=13.9470 b=13.9470 c=27.8553
octakis(1,2-dimethyl-3-butyl-1H-imidazol-3-ium) tetrakis(μ3-selenido)-docosakis(μ2-selenido)-diselenido-dodeca-tin[Mmpmim]8Sn12Se26monoclinicP21/ca=24.538 b=13.961 c=19.434 β=94.539°
tetra(1,2-dimethyl-3-butyl-1H-imidazol-3-ium) bis(μ3-selenido)-dodecakis(μ2-selenido)-hexa-tin[Mmbmim]4Sn6Se14trigonalP3221a=13.9381 c=27.774
[prmmim]2[Sn<sub>3</sub>Se<sub>7</sub>]P3221
Bmmim=1-butyl-2,3-dimethylimidazolium[bmmim]2[Sn<sub>3</sub>Se<sub>7</sub>]P3221band gap 2.2 eV
Bzmim = 1-benzyl-3-methylimidazoliumbis(1-benzyl-3-methylimidazolium) heptakis(μ-selenido)-tri-tin[Bzmim]2[Sn<sub>3</sub>Se<sub>7</sub>]orthorhombicPbcaa=14.297 b=13.8808 c=16.8855 β=99.817°[12]
Emim = 1-ethyl-3-methylimidazoliumpentakis(1-ethyl-3-methylimidazolium) bis(heptakis(μ-selenido)-tri-tin) chloride unknown solvate[Emim]5[Sn<sub>3</sub>Se<sub>7</sub>]2ClhexagonalP63/mmca=13.8331 c=18.4649
[DBNH]2[Sn<sub>3</sub>Se<sub>7</sub>]·PEGmonoclinicC2/cband gap 2.13 eV
[DBNH]3[NH<sub>4</sub>][Sn<sub>6</sub>Se<sub>14</sub>]trigonalRband gap 2.02 eV
(H+-DBN)2[Sn<sub>3</sub>Se<sub>7</sub>]Cmc21band gap 2.02 eV
(CH3)3N(CH2)2OH]2[Sn<sub>3</sub>Se<sub>7</sub>]orthorhombicPbcaband gap 2.35 eV
catena-[bis(2-hydroxy-N,N,N-trimethylethan-1-aminium) heptakis(μ-selenido)-tri-tin monohydrate](CH3)3N(CH2)2OH]2[Sn<sub>3</sub>Se<sub>7</sub>]∙H2OmonoclinicP21/na=9.8365 b=13.5796 c=20.7384 β=92.727° Z=42893.02.606orange;
catena-[bis(N,N,N-trimethylpropan-1-aminium) heptakis(μ-selenido)-tri-tin](CH3)3N(CH2)2CH3]2[Sn<sub>3</sub>Se<sub>7</sub>]orthorhombicPbcaa =17.534 b =13.7273 c =24.1221 Z=85806.22.547orange
bis(N,N,N-trimethylbutanaminium) poly[heptaselenidotristannate(IV)](Bu(CH3)3N)2[Sn<sub>3</sub>Se<sub>7</sub>]monoclinicC2/ca = 23.950, b = 13.760, c = 20.011, β = 114.565°, Z = 85998orange[13]
AEPP = N-aminoethylpiperazine[AEPPH<sub>2</sub>]2[Sn<sub>5</sub>Se<sub>12</sub>]triclinicPa = 10.6351, b = 10.6850, c = 10.7771, α = 61.344°, β = 62.442°, γ = 67.468[14]
phen=1,10-Phenanthroline(CH3NH3)4(Sn2Se6)·6phentriclinicPa 10.594 b 12.225 c 14.945 α 83.589° β 83.133° γ 86.604°[15]
Im=imidazoliumcatena-(pentakis(3-n-butyl-1-methylimidazolium) dodecakis(μ-selenido)-nona-tin tetrafluoroborate)(C4C1C1Im)5[Sn<sub>9</sub>Se<sub>20</sub>][BF<sub>4</sub>]monoclinicP21/na=13.878 b=20.365 c=31.026 β =91.326° Z=487662.652orange[16]
DMMP=2,6-dimethylmorpholine(DMMPH)4[Sn<sub>2</sub>Se<sub>6</sub>]monoclinicP21/na=6.158 b=22.381 c=14.642 β=93.57° Z=22014.11.926yellow
catena-(bis(1-ethyl-3-methylimidazolium) bis(2,6-dimethylmorpholin-4-ium) tetradecakis(μ-selenido)-hexa-tin)(C2C1Im)2(DMMPH)2[Sn<sub>6</sub>Se<sub>14</sub>]monoclinicP21/na=20.616 b=13.857 c=19.629 β=107.40° Z=453512.821orange
catena-[tetrakis(3-n-Butyl-1,2-dimethyl-1H-imidazol-3-ium) bis(μ<sub>3</sub>-selenido)-undecakis(μ<sub>2</sub>-selenido)-selenido-hexa-tin(iv)][BMMIm]4[Sn<sub>6</sub>Se<sub>14</sub>] monoclinicP21/ca 24.2744 b 13.8901 c 19.1763 β 94.083° Z=46449.32.503orange[17]
catena-(hexadecakis(1-butyl-2,3-dimethylimidazolium) octakis(μ3-selenido)-octatetracontakis(μ2-selenido)-tetracosa-tin)[BMMIm]16[Sn<sub>24</sub>Se<sub>56</sub>] trigonalP32a=27.8622 c=28.0566 Z=318862.42.568red
catena-(tris(3-Butyl-1,2-dimethylimidazolium) 2,6-dimethylmorpholin-4-ium (μ3-selenido)-dodecakis(μ2-selenido)-selenido-hexa-tin)[BMMIm]3[DMMPH][Sn<sub>6</sub>Se<sub>14</sub>] triclinicPa 11.1358 b 12.6745 c 23.362, α 89.690° β 88.473° γ 72.098° Z=23136.62.534orange or yellow (low temp)
1-butyl-3-methyl-inidazolinium[BMIm]4[Sn<sub>9</sub>Se<sub>20</sub>]monoclinicCca=19.901 b=26.494 c=14.447 β=105.34 Z=473612.892red[18]
catena-[bis(2-hydroxy-N,N,N-trimethylethan-1-aminium) heptakis(μ-selenido)-tri-tin monohydrate][HOCH<sub>2</sub>CH<sub>2</sub>N(CH<sub>3</sub>)<sub>3</sub>]2Sn3Se7·H2OmonoclinicP21/na 9.8365 b 13.5796 c 20.7384 β 92.727°orange (high temp) or yellow[19]
catena-[bis(N,N,N-trimethylpropan-1-aminium) heptakis(μ-selenido)-tri-tin][CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>N(CH<sub>3</sub>)<sub>3</sub>]2Sn3Se7orthorhombicPbcaa 17.403 b 13.7025 c 23.91132.852yellow
tetrakis(piperidinium) bis(μ-selenido)-tetraselenido-di-tinmonoclinicP21/na 10.3277 b 10.2808 c 15.7823 β 96.725°2.0110red[20]
catena-[bis(3,6,7,8-tetrahydro-2H-pyrrolo[1,2-a]pyrimidin-5-ium) tetrakis(μ-selenido)-hexa-tin] DBN = 1,5-diazabicyclo[4.3.0]non-5-eneorthorhombicCmc21a 13.4435 b 24.4817 c 14.4494red
[dabcoH]2[(CH<sub>3</sub>)<sub>2</sub>NH<sub>2</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>]monoclinicC2/ma=20.172 b=11.674 c=6.476 β=103.15 Z=21485.22.303yellow[21]
(N2H4)3(N2H5)4Sn2Se6triclinicPa = 6.6475, b = 9.5474, c = 9.883, α = 94.110°, β = 99.429°, γ = 104.141°, Z = 1[22]
bis(1-Aminoethylammonium) bis(4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo(8.8.8)hexacosane-potassium) bis(μ2-seleno)-tetraseleno-di-tin(iv)(enH)2(2,2,2-crypt-K)2Sn2Se6monoclinicP21/na=8.442 b=25.877 c=14.821 β=104.19°
(MeSn)4Se6triclinicPa = 9.147, b =10.495 c =10.508, α = 85.60, β = 89.83 γ =65.71° Z=2916adamantane structure[23]
Na4SnS4tetragonalI41acd[24]
Na4SnS4tetragonalP21ca=7.84679 c=6.95798, Z=2428.42yellow
Na4SnSe4·14H2O
Na4SnSe4·16H2OmonoclinicP21/ma = 8.673, b = 16.563, c = 8.647, β = 92.10°, Z = 2tetrahedra; Sn-Se bond length 2.504−2.527 Å
Na4Sn2S6·5H2O[25]
Na4Sn2Se6·13H2OtriclinicPa = 7.106, b = 10.330, c = 19.009, α = 78.60, β = 85.66, γ = 72.85° Z = 2 (at −130°C)orange-red; tetrahedral edge-shared pairs[26]
Na4Ge2Se6 · 16 H2OmonoclinicP21/ca = 9.894, b = 11.781, c = 12.225, β = 92.90°, Z = 2[27]
Na4Sn3Se8trigonal bipyramid + tetrahedron
Na6Sn4Se11 · 22 H2OmonoclinicC2/ca 15.325 b 11.634 c 26.739 β 95.81°yellow-orange[28]
Na6Sn2Se7·16H2Ored
catena-(tris(1-Amino-2-ammonioethane) octakis(μ3-selenido)-hexakis(μ2-selenido)-sodium-hexa-tin sesquikis(dimethylamine) sesquihydrate)(enH)3Na[Sn<sub>3</sub>Se<sub>7</sub>]2·1.5Me2NH·1.5H2OR32a=13.8647 c=18.962Na+ ion conductor[29]
bis((μ4-Selenido)-(μ3-selenido)-bis(μ2-ethylene-1,2-diamine))-tetra-sodium-tin[Na<sub>4</sub>(''en'')<sub>4</sub>][SnSe<sub>4</sub>]orthorhombicP41212a=13.090 b=13.090 c=14.548[30]
Li2MgNaSe4orthorhombicPmn21a = 8.40 b = 7.18 c = 6.73 Z=2405.93.867yellow; moisture absorbing[31]
SnPSe3monoclinicPna=6.8161 b=7.7264 c=9.6437 β=91.073°[32]
K4SnSe4orthorhombicPnmaa=14.714 b=10.323 c=8.248 Z=4yellow[33]
2D-K2Sn2Se5orthorhombicPbcaa=13.0246 b=12.186 c=14.135 Z=8[34]
K4Sn2Se6tetrahedral edge-shared pairs
K4Sn3Se8orthorhombicCccaa 8.214 b 27.795 c 8.2136[35]
K0.5[Sn<sub>3</sub>Se<sub>7</sub>]hexagonalP6522a=13.8325 c 43.295 Z=127174.12.579red
K6Sn4Se11 . 8H2OmonoclinicC2/ca =28.004 b =9 c =15.192, β 113.8°
K6[Sn<sup>III</sup><sub>2</sub>Se<sub>6</sub>]
K4Sn4Se10·4.5H2OtrigonalRa=15.32 c=21.019[36]
tetrakis(Tetramethylammonium) (hexakis(μ2-seleno)-di-tin(iv)-potassium)K(N(CH3)4)3Sn2Se6triclinicPa 9.587 b 10.005 c 15.996 α 95.15° β 92.81° γ 106.96°[37]
2-Ethylene-1,2-diamine-N,N')-bis(ethylene-1,2-diamine-N)-bis(1,4,7,10,13,16-hexaoxacyclo-octadecane)-di-potassium (μ2-ethylene-1,2-diamine-N,N')-(ethylene-1,2-diamine-N)-bis(1,4,7,10,13,16-hexaoxacyclo-octadecane)-di-potassium hexakis(μ2-selenido)-(tetraselenoxy)-tetra-tin(iv)[18-crown-6-K]4[Sn<sub>4</sub>Se<sub>10</sub>]·5enmonoclinicP21/na=22.003 b=18.966 c=24.392 β=97.548°[38]
dipotassium(+) bis[(1,4,7,10,13,16-hexaoxacyclooctadecane)potassium(+)] hexaselenodistannate(4-) tetrakis(ethylenediamine) solvate (18-crown-6)K2[K(C<sub>12</sub>H<sub>24</sub>O<sub>6</sub>)]2[Sn<sub>2</sub>Se<sub>6</sub>].4C2H8N2monoclinicP21/na=15.634 b=8.479 c=23.404 β=108.60°[39]
bis((4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo(8.8.8)hexacosane)-potassium) tris(tetraselenido)-tin(iv)[K-(2,2,2-crypt)]2Sn(Se4)3triclinicPa=10.7088 b=12.9986 c=21.7865 α=86.299° β=81.598° γ=87.258°[40]
Ca(en)4Ca(en)3[Sn<sub>2</sub>Se<sub>6</sub>]triclinicPa = 10.2708, b = 12.2739, c = 16.3103, α = 93.576°, β = 90.609°, γ = 109.269°, Z = 1 1936.09[41]
[V<sup>II</sup>(dien)<sub>2</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>]monoclinicP21/na 9.7686 b 15.094 c 12.517 β 91.007°band gap 2.11 eV[42]
catena-(tetraethylenepentaminedi-ium octakis(μ-selenido)-bis(tetraethylenepentamine)-tetraselenolato-tetra-tin(iv)-di-vanadium(iii))[H<sub>2</sub>tepa]0.5[V<sup>III</sup>(tepa)(μ-Sn<sub>2</sub>Se<sub>6</sub>)]orthorhombicAbm2a=7.808 b=41.97 c=16.982 Z=855652.496[43]
tepa = tetraethylenepentaminebis(Hydroxy-tetraethylenepentamine-chromium) 1,3,2,4-diselenadistannetane-2,2,4,4-tetrakis(selenolate) monohydrate[Cr(tepa)(OH)]2Sn2Se6·H2OorthorhombicPbcna=16.767 b=14.552 c=14.8592.08 eV[44]
peha = pentaethylenehexamidebis(Pentaethylenehexamine-chromium) dichloride 1,3,2,4-diselenadistannetane-2,2,4,4-tetrakis(selenolate)[Cr(peha)]2(Sn2Se6)Cl2monoclinicP21/na=9.636 b=14.361 c=15.357 β=106.50°2.19 eV
en = ethylenediamine, pip = piperazinepentakis(tris(ethylenediamine)-chromium(iii)) bis(tetrakis(selenyl)-tin(iv)) heptakis(chloride) piperazine solvate[Cr(en)<sub>3</sub>]2.5[SnSe<sub>4</sub>]·Cl3.5·(pip)0.5·1.5H2OtrigonalRca=15.4035 c =61.487band gap 2.23 eV;SnSe4 tetrahedron
catena-[(μ<sub>3</sub>-Selenido)-(μ<sub>2</sub>-selenido)-bis(1,2-diaminoethane)-selenido-manganese-tin]SnSe3Mn(en)2monoclinicP21/na =9.4565 b =11.2896 c =12.7937 β =103.765° Z=42.657red[45]
catena-[(μ<sub>3</sub>-Selenido)-bis(μ<sub>2</sub>-selenido)-(1,2-diaminoethane)-manganese-tin]SnSe3Mn(en)orthorhombicPbcaa=13.9290 b=7.5261 c=19.2572 Z=82018.73.097red
catena-[bis(μ<sub>3</sub>-Selenido)-bis(μ<sub>2</sub>-selenido)-bis(1,2-diaminoethane)-di-manganese-tin]MnSnSe4Mn(en)2orthorhombicPnmaa=13.1101 b=14.8267 c=7.9466 Z=41544.662.858yellow
pentaehtylenehexaamine[Mn(peha)][Sn<sub>3</sub>Se<sub>7</sub>]monoclinicP21/n
[Mn(dien)<sub>2</sub>]Sn3Se7·0.5H2OmonoclinicP21/nband gap 1.89 eV
[Mn(en)<sub>2.5</sub>(en-Me)<sub>0.5</sub>][Sn<sub>3</sub>Se<sub>7</sub>]monoclinicP21/c
catena-[tris(ethane-1,2-diamine)-manganese heptakis(μ-selenido)-tri-tin][Mn(en)<sub>3</sub>][Sn<sub>3</sub>Se<sub>7</sub>]monoclinicP21/na=12.2277 b=13.1904 c=15.9272 β=100.174°red[46]
catena-[bis(N-(2-(amino)ethyl)ethane-1,2-diamine)-manganese heptakis(μ-selenido)-tri-tin monohydrate][Mn(dien)<sub>2</sub>][Sn<sub>3</sub>Se<sub>7</sub>]∙H2OmonoclinicP21/na=12.3987 b=13.3150 c=16.6672 β=96.378°red; band gap 2.04 eV
[Mn(dien)<sub>2</sub>]Sn3Se7·0.5H2OmonoclinicP21/na 12.322 b 13.300 c 16.706 β 96.331°[47]
bis(bis(N-(2-(amino)ethyl)ethane-1,2-diamine)-manganese) bis(μ-selenido)-tetrakis(selenido)-di-tin[Mn(dien)<sub>2</sub>]2Sn2Se6monoclinicP21/na 12.677 b 9.585 c 15.595 β 102.49(3)°
[Mn(dien)<sub>2</sub>]MnSnSe4orthorhombicC2221a=9.002 b=17.761 c=12.967band gap 2.25 eV[48]
catena-[tris(ethane-1,2-diamine)-manganese(ii) (μ-diselenido)-hexakis(μ-selenido)-tri-tin][Mn(en)<small><sub>3</sub></small>]Sn3Se6(Se2)monoclinicP21/na 11.974 b 14.046 c 15.893, β 99.78°[49]
catena-((bis(diethylenetriamine)-manganese(ii)) bis(μ-selenido)-manganese)[Mn(en)<small><sub>3</sub></small>][Sn(Se<small><sub>4</sub></small>)<small><sub>3</sub></small>]triclinicPa 10.222 b 12.175 c 12.394, α 89.37° β 74.97° γ 75.66°
en = ethylenediamine, hda = N-(2-hydroxyethyl)ethylenediamine)bis(bis(ethylenediamine)-(N-(2-hydroxyethyl)ethylenediamine)-manganese(ii)) bis(μ-selenido)-tetrakis(selenido)-di-tin[Mn(en)<small><sub>2</sub></small>(hda)]2[Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]monoclinicP21/na 9.1189 b 12.3968 c 17.515 β 97.010°[50]
catena-[bis(N-(2-hydroxyethyl)ethylenediamine)-manganese(ii) bis(μ-selenido)-manganese bis(μ-selenido)-tin][Mn(hda)<small><sub>2</sub></small>][SnMnSe<small><sub>4</sub></small>]monoclinicC2/ca 9.4497 b 17.6025 c 13.1121 β 103.617°
dien = diethylenetriaminecatena-[bis(diethylenetriamine)-manganese(ii) bis(μ-selenido)-manganese bis(μ-selenido)-tin][Mn(dien)<small><sub>2</sub></small>][SnMnSe<small><sub>4</sub></small>]orthorhombicC2221a 9.0169 b 17.740 c 12.9543
heptakis(μ2-selenido)-(tetraethylenepentamine)-manganese(ii)-tri-tin(iv)Mn(tepa)·Sn3Se7orthorhombicP212121a=12.533 b=13.709 c=13.989[51]
tetrakis(μ2-selenido)-bis(seleno)-bis(tetraethylenepentamine)-di-manganese(ii)-di-tin(iv)[Mn(tepa)]22-Sn2Se6)tetragonalI41/aa=26.483 b=26.483 c=10.1423
hexakis(μ2-selenido)-tetrakis(1,10-phenanthroline)-di-manganese-di-tin dihydrate·H2OmonoclinicP21/na 11.061 b 10.061 c 25.21 β 90.081°
catena-((μ3-selenido)-bis(μ2-selenido)-(1,10-phenanthroline)-manganese-tin)[Mn(phen)]24-Sn2Se6)triclinicPa 9.721 b 10.257 c 10.346, α 118.24° β 112.53° γ 95.75°
hexakis(μ-2-aminoethan-1-olato)-octakis(μ-selenido)-hepta-manganese-di-tinMn7(ea)6(SnSe4)2orthorhombicPccna=14.886 b=19.354 c=12.4314 Z=43581.52.993orange[52]
catena-(pentakis(μ2-selenido)-bis(1,10-phenanthroline)-manganese-di-tin)[Mn(phen)<sub>2</sub>](Sn2Se5)monoclinicC2/ca 16.639 b 12.961 c 14.088β 117.91°
catena-[tris(3-butyl-1,2-dimethyl-1H-imidazol-3-ium) bis(tris(ethane-1,2-diamine)-manganese) icosakis(μ-selenido)-selenido-nona-tin chloride](Bmmim)3[Mn(en)<small><sub>3</sub></small>]2[Sn<small><sub>9</sub></small>Se<small><sub>21</sub></small>]ClmonoclinicP21/ca=19.4488 b=19.5108 c=26.6148 β=109.587°red
catena-[hexakis(1-butyl-2,3-dimethyl-1H-imidazol-3-ium) bis((N-(2-(amino)ethyl)ethane-1,2-diamine)-manganese) tetratriacontakis(selenido)-selenido-pentadeca-tin](Bmmim)6[Mn(dien)<small><sub>2</sub></small>]2Sn15Se35monoclinicP21/na=13.4256 b=29.904 c=19.5845 β=106.643°red
catena-[hemikis(tris(ethane-1,2-diamine)-manganese) hemikis((N-methylethane-1,2-diamine)-bis(ethane-1,2-diamine)-mangnaese) heptakis(μ-selenido)-tri-tin][Mn(en)<sub>2.5</sub>(en-Me)<sub>0.5</sub>][Sn<sub>3</sub>Se<sub>7</sub>]monoclinicP21/ca=12.1058 b=13.2204 c=18.2504 β=120.839° Z=42507.93.049orange[53]
catena-(bis(4-Aminobutan-1-aminium) tetrakis(μ2-selenido)-manganese-tin)(1,4-dabH)2MnSnSe4orthorhombicFdd2a =23.287 b=25.410 c=6.6053[54]
tetrakis(2,2'-bipyridine)-hexakis(μ-selenido)-di-tin-di-manganese2(μ2-Sn2Se6)monoclinicP 21/na=8.756 b=20.960 c=12.484 β=95.66°[55]
hexakis(μ2-Selenido)-bis(1,4,8,11-tetraazacyclotetradecane)-di-manganese(ii)-di-tin2(μ-Sn2Se6.15)monoclinicP21/na=9.949 b=16.783 c=11.649 β=105.208°[56]
hexakis(μ2-Selenido)-bis(2,2';6',2''-terpyridine)-di-manganese(ii)-di-tin2(μ-Sn2Se6)triclinicPa=9.430 b=10.872 c=11.090 α=117.86° β=102.83° γ=103.22°
tris(μ2-Selenido)-(2,2';6',2''-terpyridine)-manganese(ii)-tin2(μ-Sn2Se6)triclinicPa=9.923 b=10.027 c=10.959 α=107.29° β=97.57° γ=115.10°
(NMe4)2[MnSn<sub>4</sub>Se<sub>10</sub>]tetragonalIa=9.865 c =15.317red[57]
Li4MnSn2Se7monoclinicCca=18.126 b=7.221 c=10.470 β=93.43° Z=41403.24.132orange[58]
DBN=1,5-diazabicyclo[4.3.0]non-5-ene[DBNH]2[MnSnSe<sub>4</sub>]tetragonalP42/ncma=13.0305 c =6.6220[59]
[Fe(tatda)]Sn3Se7monoclinicP21/n1.93 eV
catena-((bis(diethylenetriamine)-iron(ii)) bis(μ-selenido)-iron)[Fe(dien)<sub>2</sub>]FeSnSe4orthorhombicC2221a =8.974 b =17.755 c =12.967band gap 2.21 eV
bis(bis(diethylenetriamine)-iron(ii)) bis(μ-selenido)-tetraselenido-di-tin[Fe(dien)<sub>2</sub>]2Sn2Se6monoclinicP21/na=12.563 b=9.655 c=15.566 β=102.76°band gap 2.60 eV
bis(bis(diethylenetriamine)-iron(ii)) ethane-1,2-diammonium bis(2-ammonioethyl)amine bis(bis(μ-selenido)-tetraselenido-di-tin)[H<sub>2</sub>en][H<sub>2</sub>dien][Fe(dien)<sub>2</sub>]2(Sn2Se6)2triclinicPa=8.727 b=12.794 c=14.918, α=66.09° β=84.06° γ=75.33°band gap 2.58 eV
catena-[tris(ethane-1,2-diamine)-iron(ii) (μ-diselenido)-hexakis(μ-selenido)-tri-tin][Fe(en)<small><sub>3</sub></small>]Sn3Se6(Se2)monoclinicP21/ca =11.950 b =14.083 c =17.995 β =120.25°
tris(ethane-1,2-diamine)-iron(ii) tris[tetraselanato]-tin[Fe(en)<small><sub>3</sub></small>][Sn(Se<small><sub>4</sub></small>)<small><sub>3</sub></small>]triclinicPa 10.223 b 12.106 c 12.263, α 89.40° β 89.40° γ 75.45°
tatda = 3,6,9,12-tetraazatetradecane-1,14-diaminecatena-[(3,6,9,12-tetraazatetradecane-1,14-diamine)-iron heptakis(μ-selenido)-tri-tin][Fe(tatda)]Sn3Se7monoclinicP21/na 12.1067 b 13.3225 c 17.0827 β 96.978°
hexakis(μ2-selenido)-tetrakis(1,10-phenanthroline)-di-iron-di-tin[Fe(phen)<sub>2</sub>]22-Sn2Se6)monoclinicC2/ca 26.192 b 11.248 c 17.843 β 98.816°
catena-(bis(tris(1,10-phenanthroline)-iron) bis(μ3-selenido)-dodecakis(μ2-selenido)-hexa-tin hydrate)[Fe(phen)<sub>3</sub>](Sn3Se7)·1.25H2OtrigonalRca=13.9483 c 75.476band gap 1.97 eV
bipy = bipyridinecatena-[nonakis(μ-selenido)-tetra-tin tris(2,2'-bipyridine)-iron dihydrate][Fe(bipy)<sub>3</sub>]Sn4Se9·2H2OtrigonalRca=26.902 c 30.673[60]
[Fe(bipy)<sub>3</sub>]2[Sn<sub>3</sub>Se<sub>7</sub>]2·bipy·2H2OmonoclinicP21/ca 27.055 b 13.391 c 24.756, β 103.88°
heptakis(μ-selenido)-(tetra-ethylenepentamine)-iron-tri-tinSn3Se7Fe(tepa)orthorhombicP212121a 12.4958 b 13.7745 c 14.02333.112black
bis[tris(ethane-1,2-diamine)-iron] 1,3,2,4-diselenadistannetane-2,2,4,4-tetrakis(selenolate)[Fe(en)<sub>3</sub>]2Sn2Se6orthorhombicPbcaa =15.5062(9)Å b=11.8662 c=19.09662.146red
3Sn3Se4triclinicPa 12.2066 b 12.584 c 13.0007, α 90.632° β 90.068° γ 120.836°[61]
(NMe4)2[FeSn<sub>4</sub>Se<sub>10</sub>]tetragonalIa=9.878 c=15.345
[Co(en)<sub>3</sub>]2Sn2Se6orthorhombicPbcaa=15.640 b=11.564 c=18.742
[Co(dien)<sub>2</sub>]2Sn2Se6monoclinicP21/na=10.2224 b=14.5788 c=12.3921 β=91.237° 1846.4yellow; black with water, ultrasound turns yellow[62] [63]
[Co(en)(trien)]2Sn2Se6monoclinicP21/na 7.929 b 15.855 c 14.262 β 93.436°[64]
bis(tris(2,2'-bipyridine)-cobalt(ii)) heptakis(μ-selenido)-tri-tin(iv) hexakis(μ-selenido)-selenido-tri-tin(iv) 2,2'-bipyridine monohydrate[Co(2,2′-bipy)<sub>3</sub>]2[Sn<sub>3</sub>Se<sub>7</sub>]2·(2,2′-bipy)·H2OmonoclinicP21/ca=27.032 b=13.392 c=24.763 β=103.85°
catena-[tris(ethylenediamine)-nickel hemikis(heptakis(μ-selenato)-selenato-tri-tin) hemikis(hexakis(μ-selenato)-selenato-tri-tin)][Ni(en)<sub>3</sub>][Sn<sub>3</sub>Se<sub>6.5</sub>(Se<sub>2</sub>)<sub>0.5</sub>]orthorhombicPca21a =14.88 b =1.8872Å c =13.8591.95 eV;chains of [Sn<sub>3</sub>Se<sub>7</sub>]n2n and [Sn<sub>3</sub>Se<sub>6</sub>(Se)<sub>2</sub>]n2n
tris(ethylenediamine)-nickel(ii) tetrakis(μ-selanyl)-selanyl-di-tin[Ni(en)<sub>3</sub>][Sn<sub>2</sub>Se<sub>5</sub>]monoclinicP21/na=8.7998 b=10.0736 c=22.655 β=90.763°[65]
[Ni(en)<sub>3</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>]orthorhombica=15.288 b=11.937 c=19.2393511.0
catena-[tris(ethylenediamine)-nickel heptakis(μ-selenato)-tri-tin][Ni(en)<sub>3</sub>][Sn<sub>3</sub>Se<sub>7</sub>]monoclinicP21/na=12.32 b=13.19 c=15.73 β=101.07°band gap 2.01 eV
catena-[tris(1,2-diaminoethane)-nickel(ii) pentakis(μ-selenido)-bis(selenido)-tri-tin(iv)][Ni(en)<small><sub>3</sub></small>]Sn3Se7.5orthorhombicPca21a 14.869 b 11.888 c 13.860
tris(ethane-1,2-diamine)-nickel tris[tetraselanato]-tin[Ni(en)<small><sub>3</sub></small>][Sn(Se<small><sub>4</sub></small>)<small><sub>3</sub></small>]triclinicPa 10.104 b 12.048 c 12.107, α 89.52° β 75.44° γ 75.78°
phen = 1,10-phenanthrolinetris(1,10-phenanthroline)-nickel(ii) heptakis(μ-selenato)-tri-tin(iv) sesquihydrate[Ni(phen)<sub>3</sub>]Sn3Se7·1.5H2OtrigonalRa=13.971 c=38.281[66]
[(Ni<sub>0.4</sub>Zn<sub>0.6</sub>)(en)<sub>6</sub>]Sn2Se6
catena-(tetrakis(1-n-Butyl-2,3-dimethylimidazolium) hemikis((μ2-triethylenetetramine)-bis(triethylenetetramine)-di-nickel) tris(μ3-selenido)-heptadecakis(μ2-selenido)-selenido-nona-tin)2D-(Bmmim)8[Ni<sub>2</sub>(teta)<sub>2</sub>(μ-teta)]Sn18Se42monoclinicP21/na =18.9764 b= 25.1081 c =20.5731 β =100.870°[67]
teta = triethylenetetramine(ethylenediamine)-(triethylenetetramine)-nickel(ii) (triethylenetetramine)-(N-(2-hydroxyethyl)ethylenediamine)-nickel(ii) hexakis(μ-selenido)-tetrakis(selenido)-tetra-tin[Ni(teta)(en)][Ni(teta)(hda)][Sn<small><sub>4</sub></small>Se<small><sub>10</sub></small>]monoclinicP21/na 12.3191 b 17.7104 c 22.643 β 95.278°
tepa=tetraethylenepentaminecatena-(tetrakis(1-n-Butyl-2,3-dimethylimidazolium) bis(chloro-(tetraethylenepentamine)-nickel) pentakis(μ3-selenido)-tricosakis(μ2-selenido)-(tetraethylenepentamine)-nickel-dodeca-tin)2D-(Bmmim)4[Ni(tepa)Cl]2[Ni(tepa)Sn<sub>12</sub>Se<sub>28</sub>]monoclinicPna=21.2230 b=13.4993 c=23.8715 β =112.461°
Bmmim=1-butyl-2,3-dimethylimidazolium2D-(Bmmim)3[Ni(en)<sub>3</sub>]2[Sn<sub>9</sub>Se<sub>21</sub>]ClmonoclinicP21/ca 19.488 b 19.626 c 26.793 β 109.930°
catena-(bis(1-n-Butyl-2,3-dimethylimidazolium) bis(tris(propane-1,2-diamine)-nickel) bis(bis(μ3-selenido)-heptakis(μ2-selenido)-tetra-tin))3D-(Bmmim)2[Ni(1,2-pda)<sub>3</sub>]Sn8Se18trigonalRca=27.7913 c 47.4281
catena-[bis(N-(2-(amino)ethyl)ethane-1,2-diamine)-nickel sesquikis(3-butyl-1,2-dimethyl-1H-imidazol-3-ium) hemikis(2-amino-N-(2-aminoethyl)ethylammonium) octadecakis(μ-selenido)-octa-tin]2D-(Bmmim)2[Ni(teta)(en)][Sn<small><sub>3</sub></small>Se<small><sub>7</sub></small>]2monoclinicP21/ca=31.088 b=10.5393 c=19.9712 β=99.966°[68]
catena-[(N,N'-bis(2-(amino)ethyl)ethane-1,2-diamine)-(ethane-1,2-diamine)-nickel bis(1-butyl-2,3-dimethyl-1H-imidazol-3-ium) tridecakis(μ-selenido)-selenido-hexa-tin]3D-(Bmmim)1.5(dienH)0.5Ni(dien)2[Sn<small><sub>4</sub></small>Se<small><sub>9</sub></small>]2monoclinicP21/ca=24.3753 b=13.3778 c=17.7885 β=93.949°
[Ni(tren)(en)]SnSe3∙H2O638.64monoclinicP21/na=12.8150 b=10.0094c=15.6626 β=???? Z=41885.8band gap[69]
bis((tris(2-aminoethyl)amine)-(ethane-1,2-diamine)-nickel(ii)) bis(μ-sulfido)-tetrathiolato-di-tin dihydrate[Ni(tren)(en)]2[Sn<sub>2</sub>S<sub>6</sub>]·2H2OmonoclinicP21/na 12.7041 b 9.8000 c 15.3989 β 108.843°3.23 eV[70]
bis((tris(2-aminoethyl)amine)-(ethane-1,2-diamine)-nickel(ii)) bis(μ-sulfido)-tetrathiolato-di-tin hexahydrate[Ni(tren)(en)]2[Sn<sub>2</sub>S<sub>6</sub>]·6H2OmonoclinicP21/ca 12.5580 b 9.7089 c 16.0359 β 91.827°3.16 eV
bis((tris(2-aminoethyl)amine)-(cyclohexane-1,2-diamine)-nickel(ii)) bis(μ-sulfido)-tetrathiolato-di-tin trihydrate[Ni(tren)(1,2-dach)]2[Sn<sub>2</sub>S<sub>6</sub>]·3H2OtriclinicPa 9.8121 b 10.0080 c 12.422, α 86.38° β 79.65° γ 65.71°3.43 eV
bis((tris(2-aminoethyl)amine)-(cyclohexane-1,2-diamine)-nickel(ii)) bis(μ-sulfido)-tetrathiolato-di-tin tetrahydrate[Ni(tren)(1,2-dach)]2[Sn<sub>2</sub>S<sub>6</sub>]·4H2OmonoclinicP21/ca 10.7119 b 19.0797 c 11.1005 β 104.803°3.29 eV
bis((tris(2-aminoethyl)amine)-(propane-1,2-diamine)-nickel(ii)) bis(μ-sulfido)-tetrathiolato-di-tin tetrahydrate[Ni(tren)(1,2-dap)]2[Sn<sub>2</sub>S<sub>6</sub>]·4H2OmonoclinicC2/ca 14.3925 b 15.1550 c 18.9307 β 99.108°3.32 eV
bis((tris(2-aminoethyl)amine)-(2-(aminomethyl)pyridine)-nickel(ii)) bis(μ-sulfido)-tetrathiolato-di-tin decahydrate[Ni(tren)(2amp)]2[Sn<sub>2</sub>S<sub>6</sub>]·10H2OmonoclinicP21/na 12.1933 b 13.4025 c 14.8920 β 103.090°3.28 eV
L1 = 1,8-dimethyl-1,3,6,8,10,13-hexaazacyclotetradecane[Ni(L<sub>1</sub>)][Ni(L<sub>1</sub>)Sn<sub>2</sub>S<sub>6</sub>]n·2H2OmonoclinicP21/ca 11.6481 b 14.4268 c 10.8450 β 95.449°brown[71]
L2 = 1,8-diethyl-1,3,6,8,10,13-hexaazacyclotetradecane[Ni(L<sub>2</sub>)]2[Sn<sub>2</sub>S<sub>6</sub>]·4H2OtriclinicPa 9.1562 b 10.3705 c 12.2897 α 66.761° β 85.350° γ 81.308°
2-triethylenetetramine)-bis(triethylenetetramine)-di-nickel(ii) tetrachloride dihydrate[Ni<sub>2</sub>(trien)<sub>2</sub>(μ-trien)]Cl4·2H2OorthorhombicPbcaa 13.737 b 13.089 c 18.193
bis(tris(2,2'-bipyridine)-nickel(ii)) heptakis(μ-selenido)-tri-tin(iv) hexakis(μ-selenido)-selenido-tri-tin(iv) 2,2'-bipyridine monohydrate[Ni(2,2′-bipy)<sub>3</sub>]2[Sn<sub>3</sub>Se<sub>7</sub>]2·(2,2′-bipy)·H2OmonoclinicP 21/ca=26.999 b=13.383 c=24.714 β=103.89°
Cu2SnSe4F3mthermoelectric[72]
(1,4-dabH2)Cu2SnSe4orthorhombicP42/na=14.956 b=14.956 c=12.017
Na6Cu8Sn3Se13cubicFmca =18.4754[73]
[Cu<sub>2</sub>SnSe<sub>5</sub>][Mn(Hen)<sub>2</sub>(en)]monoclinicP21/ca 9.640 b 21.04 c 10.611 β 100.72°1.49 eV[74]
[(Mn<sub>1.67</sub>Zn<sub>0.33</sub>)(en)<sub>6</sub>]Sn2Se6
K2Cu2Sn2Se6monoclinicC2/cZ=8black; band gap 1.04 eV[75]
Copper zinc tin selenideCu2ZnSnSe4black; photovoltaic 11.6% efficient
catena-[tris(ethane-1,2-diamine)-zinc(ii) (μ-diselenido)-hexakis(μ-selenido)-tri-tin][Zn(en)<small><sub>3</sub></small>]Sn3Se6(Se2)monoclinicP21/na 11.949 b 14.060 c 15.794 β 100.39°
tris(ethane-1,2-diamine)-zinc(ii) tris[tetraselanato]-tin[Zn(en)<small><sub>3</sub></small>][Sn(Se<small><sub>4</sub></small>)<small><sub>3</sub></small>]triclinicPa 10.156 b 12.096 c 12.109, α 89.64° β 75.49° γ 75.87°
Zn2(en)24-SnSe4)tetragonalI41/aa =7.8032 c =31.528
tetrakis(μ-selenido)-bis(selenido)-bis(N,N-bis(2-aminoethyl)ethane-1,2-diamine)-di-tin(iv)-di-zinc(ii)2(μ-Sn2Se6)monoclinicC2/ca 12.414 b 9.846 c 23.970° β 102.395°2861.5band gap 2.38 eV[76]
tetrakis(μ-selenido)-bis(selenido)-bis(bis(2-(2-aminoethyl)aminoethyl)amine)-di-tin(iv)-di-zinc(ii)2(μ-Sn2Se6)tetragonalI41/aa=26.6205 c =10.05337124.3band gap 2.31 eV
catena-[bis(dimethylammonium) octakis(μ-selenido)-tri-tin(iv)-zinc(ii)][(Me)<sub>2</sub>NH<sub>2</sub>]2ZnSn3Se8monoclinicC2a=10.961 b=11.056 c=9.683 β=105.17°[77]
(Me4N)2Zn[Sn<sub>4</sub>Se<sub>10</sub>][78]
DBN=1,5-diazabicyclo[4.3.0]non-5-ene[DBNH]2[ZnSnSe<sub>4</sub>]tetragonalP42/ncma=13.033 c 6.548band gap 2.42 eV
K2ZnSn3Se8monoclinicP21a 7.639 b 12.400 c 18.384 β 98.13°band gap 2.10 eV[79]
Cu2ZnSnSe4
[NH<sub>4</sub>]2Ga4Se8Sn4monoclinicP21/ca 7.582 b 12.501 c 18.377 β 96.43°[80]
catena-(1-ethylpyridinium hexakis(μ-selenido)-gallium-di-tin hydrate)H3CCH2NC5H5GaSn2Se6 ∙ 0.25H2OtetragonalI41/aa=26.401 c =10.464orange[81]
x~0.25Na2−xGa2−xSn1+xSe6monoclinicC2a=13.308 b=7.594 c=13.842 β=118.730°1226.7[82]
K3Ga6Sn6Se12cubicPaa=13.5555 Z=122490.84.347colourless[83]
KGaSnSe4cubicPaa=13.5555 Z=122490.84.347orange
[(TEPA)Mn]2+4[Sn<sub>4</sub>Ga<sub>4</sub>Zn<sub>2</sub>Se<sub>20</sub>]8−tetragonalPb2a=17.4951 c 13.5849[84]
(Et4N)2[Sn<sub>6</sub>Se<sub>10</sub>Br<sub>6</sub>]monoclinicP21/na = 14.0826 b = 14.1904 c = 24.277 β = 92.809° Z = 44845.6[85]
Rb2Sn2Se5monoclinicC2/ca=11.555 b=8.478 c=12.030 β=108.60 Z=411174.78black; oxygen sensitive[86]
Rb4Sn4Se10·1.5H2ORa 15.539 c 21.373
Rb2Cu2Sn2Se6monoclinicC2/cZ=8black; band gap 1.04 eV
RbGaSnSe4cubicPaa=13.72002582.634.550orange
Rb2Sn4Se9-H2OorthorhombicPnmaa=13.298 b=12.418 c=12.563[87]
Rb2MnSn3Se8monoclinicP21a 7.7864 b 12.6343 c 18.4878 β 95.810°[88]
Rb2MnSnSe4monoclinicP21/na=8.6015 b=10.956 c=10.675 β=90°[89]
Rb4Cu8Sn3S12cubicFmca=18.0851[90]
(H3O)RbCu6Sn2S8tetragonalI4/ma=14.8834 c=7.6466
SrZnSnSe4orthorhombicFdd2a 21.6984 b 21.873 c 13.1140[91]
catena-[(μ-hydroxo)-bis(μ-selenido)-(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-selenido-tin-yttrium][Y<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]orthorhombicPbcaa=12.4190 b=13.6062 c=20.6569 Z=82.467orange[92]
bis(bis(μ2-hydroxo)-bis(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-dichloro-di-yttrium) hexakis(μ2-selenido)-tetrakis(selenido)-tetra-tin tetrahydrate[Y<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ<small><sub>2</sub></small>-OH)<small><sub>2</sub></small>Cl<small><sub>2</sub></small>]2[Sn<small><sub>4</sub></small>Se<small><sub>10</sub></small>]·4H2OtetragonalI41/aa=28.24 c=10.9402.025yellow
Ru(bpy)3[Sn<small><sub>4</sub></small>Se<small><sub>9</sub></small>]1755.02trigonalR3ca=27.240 c=31.01 Z=18199272.632dark red[93]
β-Ag8SnSe6Pmn21
[NH<sub>4</sub>]3AgSn3Se8tetragonalP4/nbma=8.2155 c=13.413thermochromic: gold-darkred-gold
[NH<sub>4</sub>]4Ag12Sn7Se22monoclinicC2/ca=52.634 b=6.8175 c=13.5176 β=99.955 Z=44959.15.270black; band gap 1.21 eV[94]
[(Me)<sub>2</sub>NH<sub>2</sub>]0.75[Ag<sub>1.25</sub>SnSe<sub>3</sub>]tetragonalP21ma=13.998 c=8.685 Z=81701.94.403dark red; band gap 1.85 eV[95]
[CH<sub>3</sub>NH<sub>3</sub>]2[H<sub>3</sub>O]Ag5Sn4Se12·C2H5OHtetragonalP21ma=13.6350 c 9.1491 Z=8band gap 1.80 eV
catena-[bis(methylammonium) dimethylammonium dodecakis(μ-selenido)-penta-silver-tetra-tin][NH<sub>3</sub>CH<sub>3</sub>]0.5[NH<sub>2</sub>(CH<sub>3</sub>)<sub>2</sub>]0.25Ag1.25SnSe3tetragonalP21mb =13.7193 c 9.09644.019[96]
[bmmim]7[AgSn<sub>12</sub>Se<sub>28</sub>]triclinicPband gap 2.2 eV
heptakis(1,2-dimethyl-3-propyl-1H-imidazol-3-ium) bis(μ3-selenido)-hexacosakis(μ2-selenido)-dodeca-tin-silver[Mmpmim]7Ag5Sn4Se12∙3H2OtriclinicPa 10.8983 b 13.5554 c 23.091 α 88.904° β 86.700° γ 68.230°
catena-[N<sup>1</sup>-(2-azaniumylethyl)ethane-1,2-bis(aminium) dodeca-selenium-tetra-tin-penta-silver trihydrate][H<sub>3</sub>dien][Ag<sub>5</sub>Sn<sub>4</sub>Se<sub>12</sub>]∙3H2OP21a =14.2623 b =14.2623 c =9.3022[97]
K2Ag2SnSe4P2/cband gap 1.8 eV
K2Ag2Sn2Se6P4/mmc
K3AgSn3Se8P4/nbmband gap 1.8 eV
[Mn(NH<sub>3</sub>)<sub>6</sub>][Ag<sub>4</sub>Mn<sub>4</sub>Sn<sub>3</sub>Se<sub>13</sub>]orthorhombicF3ca 19.1263Å b 19.1263Å c 19.1263[98]
catena-(2-aminoethylammonium bis(μ4-sulfido)-bis(μ3-sulfido)-tin-di-copper-silver)[enH][Cu<small><sub>2</sub></small>AgSnS<small><sub>4</sub></small>]orthorhombicPnmaa=19.726 b=7.8544 c=6.5083 Z=41008.353.577red[99]
[Zn(NH<sub>3</sub>)<sub>6</sub>][Ag<sub>4</sub>Zn<sub>4</sub>Sn<sub>3</sub>Se<sub>13</sub>]orthorhombicF3ca=18.9679 b=18.9679 c=18.9679
(1,4-dabH2)Cu1.72Ag0.28SnSe4tetragonalP42/na=14.990 c=12.059band gap 2.43 eV[100]
Rb3AgSn3Se8P4/nbmband gap 1.8 eV
Li6.4Cd4.8Sn4Se16orthorhombicPna21a=14.400 b=8.399 c=6.787band gap 1.95 eV[101]
tetrakis(2,3,4,6,7,8-Hexahydro-1H-pyrrolo[1,2-a]pyrimidin-5-ium) bis(μ3-diselenido)-undecakis(μ2-selenido)-tri-cadmium-tetra-tin[DBNH]4[Cd<sub>3</sub>Sn<sub>4</sub>Se<sub>11</sub>(Se<sub>2</sub>)<sub>2</sub>]monoclinicC2/ca=22.236 b=12.623 c=21.756 β=109.91°[102]
Cd(tren)SnSe3triclinicPa=7.752 b=8.128 c=12.467, α=97.299° β=103.639° γ=107.325° Z=2712.12.865[103]
K2CdSnSe4625.16tetragonalI2ma=8.084 c=6.920452.24photocatalyst[104]
Cu2CdSnSe4
catena-(1-ethylpyridinium hexakis(μ-selenido)-indium-di-tin hydrate)CH3CH2NC5H5InSn2Se6 ∙ 0.25H2OtetragonalI41/aa=26.946 c =10.283orange
[NH<sub>4</sub>]2[In<sub>2</sub>Sn<sub>2</sub>Se<sub>8</sub>]tetragonalI4/mcma=b 8.3731 c 6.719
catena-[tris(1,10-phenanthroline)-cobalt octakis(μ-selenido)-di-indium-di-tin cyclohexylamine solvate tetrahydrate]Co(phen)3In2Sn2Se8 ∙ C6H11NH2 ∙ 4H2OmonoclinicP21/na=15.610 b=24.238 c=15.828 β=107.04° Z=457262.169orange[105]
tris(1,10-phenanthroline)-nickel octakis(μ-selenido)-di-indium-di-tin cyclohexylamine solvate tetrahydrateNi(phen)3In2Sn2Se8 ∙ C6H11NH2monoclinicP21/na=15.574 b=24.083 c=15.804 β=107.11° Z=456652.192orange
RbInSnSe4cubicPaa=13.9728 Z=122728.044.637red; air sensitive[106]
RbInSnSe4monoclinicP21/ca= 7.8104 b= 12.6533 c= 18.7062 β= 96.2971837.524.589orange
Cs2Sn2Se5 . H2OorthorhombicAma2a =12.05 b =12.405 c =9.426
Cs2Sn2Se5
Cs2Sn2Se6triclinicPa =7.129 b =7.285 c =7.965, α =95.8° β =115.38° γ =108.46°
Cs2Sn3Se7monoclinicC2/ca = 23.214, b = 13.679, c =14,657, β= 111.92°, Z = 8,4317red; SnSe5 trigonal bipyramids connected in sheets[107]
Cs4Sn2Se6yellow; tetrahedral edge-shared pairs
Cs4Sn4Se10·3.2H2OtriclinicPa=7.235 b=9.468 c=11.235 α=68.77° β=83.25° γ=84.53°
Cs2Sn4Se9-H2OorthorhombicPnmaa =13.514 b =12.54 c =12.679
(4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo(8.8.8)hexacosane)-potassium tris(μ3-selenido)-tris(μ2-selenido)-bis(1,2-ethylenediamine-N)-(4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo(8.8.8)hexacosane)-di-cesium-potassium-di-tin(iv)[K-(2,2,2-crypt)]2Cs2Sn2Se6·2entriclinicPa=10.0019 b=13.8929 c=24.478 α=100.204° β=95.701° γ=90.147°
Cs[Cr(en)<sub>2</sub>SnSe<sub>4</sub>]739.67monoclinicP21/na=7.6800 b=13.1483 c=15.7069 β=91.176° Z=41585.73.098black[108]
Cs2MnSnSe4orthorhombicFddda=6.4075 b=14.416 c=24.820
Cs2MgSn3Se8orthorhombicP212121a 7.9055 b 12.7661 c 18.474
Cs2MnSn3Se8orthorhombicP212121a 7.8798 b 12.7040 c 18.4556
Mn4Cs10Se17Sn4 ∙ 15.5H2OtriclinicPa 13.717 b 15.502 c 18.481 α 77.02° β 74.35° γ 69.71° Z=235123.418red
Zn4Cs10Se17Sn4 ∙ 17H2OtriclinicPa 13.537 b 15.256 c 18.41, α 76.98° β 73.78° γ 69.57° Z=233863.577yellow
Cs2ZnSn3Se8orthorhombicP212121a 7.8146 b 12.6534 c 18.3747
CsGaSnSe4orthorhombicPmcna 7.6785Å b 12.655Å c 18.278
Cd4Cs10Se17Sn4 ∙ 17H2OtriclinicPa 17.8678 b 17.7949 c 23.5518 α 98.682° β 105.75° γ 90.307° Z=471163.617yellow
Cs2CdSn3Se8orthorhombicP212121a 7.9335 b 12.7336 c 18.5387[109]
CsInSnSe4cubicPaa=14.1932 Z=122959.24.755red; air sensitive
Ba2SnSe4709.21monoclinicP21/ca 8.582 b 9.255 c 12.460 β 114.28° Z=4902.25.221orange[110]
α-Ba2SnSe5orthorhombicP212121dark brown[111]
β-Ba2SnSe5monoclinicP21/ca = 9.3949 b = 8.8656 c = 12.5745 β = 113.299° Z = 4961.9high temperature; red
m-Ba2SnSe5monoclinicP121/c1a = 21.17189 b = 9.0915 c = 24.7141 β = 125.621°[112]
Ba6Sn6Se13orthorhombicP212121a 9.2998 b 12.384 c 26.896 Z=43097.85.495black; 1.52 eV[113]
Li2Ba7Sn4Se16cubicI3da=15.1628 Z=43486.15.170 ?red[114]
Na2Ba7Sn4Se16cubicI3da=14.807 Z=432464.082red
BaZnSnSe4orthorhombicFdd2a 22.2402 b 22.7047 c 13.19726664.05.081red; band gap 1.95 eV[115]
BaGa2SnSe6trigonalR3a = 10.145 c = 9.249 Z = 3824.45.253redNLO 5.2 × AgGaS2 at 2.09 μmbirefringence 0.1649 at 1.064 μm[116]
Ba4Ga4SnSe12band gap 2.14[117]
BaAg2SnSe4orthorhombicI222a=7.10 b=7.47 c=8.30band gap 0.2 eV[118]
BaCdSnSe4684.27orthorhombicFdd2a 22.38 b 22.71 c 13.588 Z=3269075.265orange
catena-(hexakis(μ2-selenido)-(N-(2-(amino)ethyl)-N'-(2-((2-(amino)ethyl)amino)ethyl)ethane-1,2-diaminato)-di-tin-lanthanum hemihydrate)(H3O)[La(tepa)(μ-1κ<sup>2</sup>:2κ<sup>2</sup>-Sn<sub>2</sub>Se<sub>6</sub>)]monoclinicC2/ca=13.845 b=9.805 c=22.010 β=105.949°[119]
tetrakis(μ-selenido)-bis(3,6,9,12-tetraazatetradecane-1,14-diamine)-nitrato-chloro-di-lanthanum(iii)-tin(μ-1κ2:2κ2-SnSe4)]triclinicPa 8.411 b 14.760 c 16.244 α 92.57° β 91.95° γ 102.18° Z=21967.32.15light yellow[120]
2,2'-(ethane-1,2-diyldiimino)diethanaminium tetrakis(μ-selenido)-tetrakis(triethylenetetramine)-diselenido-di-tin-di-lanthanum(iii) bis(μ-selenido)-tetraselenido-di-tin monohydrate[H<sub>2</sub>trien][{La(trien)<sub>2</sub>}<sub>2</sub>(μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)][Sn<sub>2</sub>Se<sub>6</sub>]·H2OmonoclinicP21/ca=14.903 b=16.763 c=16.552 β=101.231° Z=240562.01orange
[{La(dien)<sub>2</sub>}<sub>4</sub>(μ<sub>4</sub>-Sn<sub>2</sub>Se<sub>9</sub>)(μ-Sn<sub>2</sub>Se<sub>6</sub>)]triclinicPa 10.253 b 13.061 c 15.847 α 80.62° β 73.59° γ 88.60° Z=12007.92.514red[121]
[La<sub>2</sub>(en)<sub>8</sub>(μ-Se<sub>2</sub>)]Sn2SemonoclinicP21/na 10.079 b 14.843 c 14.918 β 90.599° Z=22231.72.422yellow
La3AgSnSe7P63
catena-(hexakis(μ2-Selenido)-(tetraethylenepentamine)-cerium-di-tin monohydrate)(H3O)[Ce(tepa)(μ-1κ<sup>2</sup>:2κ<sup>2</sup>-Sn<sub>2</sub>Se<sub>6</sub>)]monoclinicC2/ca=13.852 b=9.802 c=22.035 β=105.98°[122]
tetrakis(μ2-Selenido)-bis(triethylenetetramine)-bis(tris(2-aminoethyl)amine)-diselenido-di-cerium-di-tin bis((2-((2-aminoethyl)amino)ethyl)(2-aminoethyl)ammonium) bis(μ2-selenido)-tetraselenido-di-tin[Htrien]2[{Ce(trien)(tren)}<sub>2</sub>(μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)]triclinicPa 9.832 b 10.584 c 18.091, α 90.097° β 92.448° γ 94.500°
[{Ce(dien)<small><sub>2</sub></small>}<small><sub>4</sub></small>(μ<small><sub>4</sub></small>-Sn<small><sub>2</sub></small>Se<small><sub>9</sub></small>)(μ-Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>)]triclinicPa 10.2333 b 13.0790 c 15.7663, α 80.422° β 73.738° γ 88.376° Z=11997.12.532orange[123]
[{Ce(en)<small><sub>4</sub></small>}<small><sub>2</sub></small>(μ-Se<small><sub>2</sub></small>)]Sn2Se6monoclinicP21/na 10.094 b 16.616 c 13.397 β 101.878° Z=22198.92.462light yellow
BaCeSn2Se6orthorhombicPmc21a=4.1908 b=20.749 c=12.406[124]
tetrakis(μ2-Selenido)-bis(triethylenetetramine)-bis(tris(2-aminoethyl)amine)-diselenido-di-neodymium-di-tin bis((2-((2-aminoethyl)amino)ethyl)(2-aminoethyl)ammonium) bis(μ2-selenido)-tetraselenido-di-tin[Htrien]2[{Pr(trien)(tren)}<sub>2</sub>(μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)]triclinicPa 9.842 b 10.578 c 18.080, α 90.065° β 92.532° γ 94.511°
catena-[(μ-hydroxo)-bis(μ-selenido)-(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-selenido-tin-praseodymium][Pr<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]orthorhombicPbcaa=12.450 b=13.617 c=21.005 Z=82.622orange
[{Pr(en)<small><sub>3</sub></small>}<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>]Sn2Se6monoclinicP21/na 10.197 b 11.7622 c 15.497 β 98.967° Z=21835.92.510yellow
catena-(bis(μ2-hydroxo)-tetrakis(μ2-selenido)-bis(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-diselenido-di-neodymium-di-tin)[{Nd(tepa)(μ-OH)}<sub>2</sub>(μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)]orthorhombicPbcaa=12.485 b=13.601 c=20.917
[{Nd(en)<small><sub>3</sub></small>}<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>]Sn2Se6monoclinicP21/na 10.176 b 11.772 c 15.470 β 99.128° Z=21829.82.531yellow
[{Nd(dien)<small><sub>2</sub></small>}<small><sub>4</sub></small>(μ<small><sub>4</sub></small>-Sn<small><sub>2</sub></small>Se<small><sub>9</sub></small>)(μ-Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>)]triclinicPa 10.184 b 12.979 c 15.751, α 80.448° β 73.991° γ 88.552° Z=11973.12.576red
ethane-1,2-diaminium tris(N-(2-(amino)ethyl)ethane-1,2-diamine)-samarium 1,3,2,4-diselenadistannetane-2,2,4,4-tetrakis(selenolate)[Hen][Sm(dien)<sub>3</sub>]Sn2Se6triclinicPa=10.044 b=12.803 c=15.811 α=66.32° β=72.86° γ=68.35°[125]
bis(bis(N,N-bis(2-(amino)ethyl)ethane-1,2-diamine)-chloro-samarium) hemikis(N,N-bis(2-aminoethyl)ethane-1,2-diamine) bis(μ-selenido)-tetrakis(selenido)-di-tin[Sm(trien)(tren)(Cl)]2Sn2Se6·0.5entriclinicPa=10.348 b=10.575 c=14.043 α=77.26° β=87.78° γ=61.410°
bis(N,N'-bis(2-(amino)ethyl)ethane-1,2-diamine)-bis(ethane-1,2-diamine)-bis(μ-hydroxy)di-samarium 1,3,2,4-diselenadistannetane-2,2,4,4-tetrakis(selenolate)[{Sm(en)(trien)}<sub>2</sub>(μ-OH)<sub>2</sub>]Sn2Se6triclinicPa=10.044 b=12.803 c=15.811, α=66.32° β=72.86° γ=68.35°
catena-[bis(μ-selenido)-(μ-hydroxo)-(3,6,9-triazaundecan-1,11-diamine)-selenido-samarium-tin hemihydrate][{Sm(tepa)(μ-OH)}<sub>2</sub> (μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)]n·nH2OmonoclinicC2/ca=22.944 b=11.946 c=18.907 β=125.53° Z=442172.27yellow
[Hdien][Sm(dien)<sub>2</sub>(μ-SnSe<sub>4</sub>)]monoclinicP2/ca 10.185 b 9.471 c 13.808 β 102.256°[126]
Eu8(Sn4Se14)(Se3)2orthorhombicP21212a = 11.990 b = 16.425 c = 8.543[127]
catena-[bis(μ-selenido)-(μ-hydroxo)-(3,6,9-triazaundecan-1,11-diamine)-selenido-europium-tin hemihydrate][{Eu(tepa)(μ-OH)}<sub>2</sub> (μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)]n·nH2OmonoclinicC2/ca=22.904 b=11.981 c=18.894 β=125.52° Z=442202.28yellow
[Hdien][Eu(dien)<sub>2</sub>(μ-SnSe<sub>4</sub>)]monoclinicP2/ca 10.185 b 9.453 c 13.791 β 102.165°
[Eu<sub>2</sub>(dien)<sub>4</sub>(μ-OH)<sub>2</sub>]Sn2Se6monoclinicP21/na 12.027 b 11.802 c 13.827 β 99.179°
[{Eu(en)<sub>3</sub>}<sub>2</sub>(μ-OH)<sub>2</sub>]Sn2Se6monoclinicP21/na = 10.136 b = 11.771 c = 15.423 β = 99.322° Z = 21815.8[128]
catena-(bis(μ2-hydroxo)-tetrakis(μ2-selenido)-bis(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-diselenido-di-gadolinium-di-tin monohydrate)[{Gd(tepa)(μ-OH)}<sub>2</sub>(μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)]·H2OmonoclinicC2/ca=22.82 b=11.975 c=18.918 β=125.975°
[{Gd(en)<small><sub>3</sub></small>}<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>]Sn2Se6monoclinicP21/na 9.993 b 11.842 c 15.313° β 99.979° Z=21784.62.643yellow
[Hdien][Gd(dien)<small><sub>2</sub></small>(μ-SnSe<small><sub>4</sub></small>)]monoclinicP21/ca 10.300 b 9.426 c 13.875 β 101.678° Z=21319.32.271red
[Gd(dap)<sub>4</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>]Cl2monoclinicP21/ca=10.2385 b=14.1276 c=18.068 β =102.745°[129]
[{Tb(en)<sub>3</sub>}<sub>2</sub>(μ-OH)<sub>2</sub>]Sn2Se61423.62monoclinicP21/na=10.120 b=11.781 c=15.403 β=99.534° Z=21811.12.611[130]
bis(tetrakis(propane-1,2-diamine)-terbium) dichloride bis(μ-selenido)-tetrakis(selenido)-di-tin monohydrate[Tb(dap)<sub>4</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>]Cl2·H2OmonoclinicP21/ca=10.240 b=14.116 c=18.030 β=102.808°
catena-[bis(μ<sub>2</sub>-selenido)-(μ<sub>2</sub>-hydroxo)-(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-selenido-dysprosium-tin][Dy<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]orthorhombicPbcaa=12.4132 b=13.5901 c=20.6722 Z=82.759orange
bis(bis(μ2-hydroxo)-bis(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-dichloro-di-dysprosium) hexakis(μ2-selenido)-tetrakis(selenido)-tetra-tin tetrahydrate[Dy<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ<small><sub>2</sub></small>-OH)<small><sub>2</sub></small>Cl<small><sub>2</sub></small>]2[Sn<small><sub>4</sub></small>Se<small><sub>10</sub></small>]·4H2OtetragonalI41/aa=28.2390 c=11.03802.229yellow
[Dy<sub>2</sub>(en)<sub>6</sub>(''μ''<sub>2</sub>-OH)<sub>2</sub>][Sn<sub>2</sub>Se<sub>6</sub>][131]
bis(tetrakis(propane-1,2-diamine)-dysprosium) dichloride bis(μ-selenido)-tetrakis(selenido)-di-tin monohydrate[Dy(dap)<sub>4</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>]Cl2·H2OmonoclinicP21/ca=10.214 b=14.118 c=18.000 β=102.798°
bis(tetrakis(Propane-1,2-diamine)-holmium chloride) 1,3,2,4-diselenadistannetane-2,2,4,4-tetrakis(selenolate)[Ho(dap)<small><sub>4</sub></small>]2[Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]Cl2monoclinicP21/ca=10.1839 b=14.1303 c=18.0100 β=102.571° Z=42529.5yellow[132]
bis(μ2-Hydroxo)-tetrakis(diethylenetriamine)-di-holmium 1,3,2,4-diselenadistannetane-2,2,4,4-tetrakis(selenolate)[Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]monoclinicP21/na=12.0096 b=11.7181 c=13.7717 β=99.138° Z=21913.52.586yellow
bis(bis(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-dichloro-bis(μ-hydroxo)-di-holmium) tricyclo[3.3.1.1<sup>3,7</sup>]tetrastannaselenane-1,3,5,7-tetrakis(selenolate) tetrahydrate[Ho<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ<small><sub>2</sub></small>-OH)<small><sub>2</sub></small>Cl<small><sub>2</sub></small>]2[Sn<small><sub>4</sub></small>Se<small><sub>10</sub></small>]·4H2OtetragonalI41/aa=28.076 c 10.9488629.62.281yellow; supertetrahedron
catena-[bis(μ<sub>2</sub>-selenido)-(μ<sub>2</sub>-hydroxo)-(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-selenido-erbium-tin][Er<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]orthorhombicPbcaa=12.418 b=13.605 c=20.636 Z=82.778orange
bis(bis(μ2-hydroxo)-bis(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-dichloro-di-erbium) hexakis(μ2-selenido)-tetrakis(selenido)-tetra-tin tetrahydrate[Er<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ<small><sub>2</sub></small>-OH)<small><sub>2</sub></small>Cl<small><sub>2</sub></small>]2[Sn<small><sub>4</sub></small>Se<small><sub>10</sub></small>]·4H2OtetragonalI41/aa=28.1622 c=11.00892.261yellow
[Er<sub>2</sub>(en)<sub>6</sub>(''μ''<sub>2</sub>-OH)<sub>2</sub>][Sn<sub>2</sub>S<sub>6</sub>]monoclinicP21/na 9.951 b 11.860 c 15.278 β 100.239°
bis(tetrakis(propane-1,2-diamine)-erbium) dichloride bis(μ-selenido)-tetrakis(selenido)-di-tin monohydrate[Er(dap)<sub>4</sub>]2[Sn<sub>2</sub>Se<sub>6</sub>]Cl2·H2OmonoclinicP21/ca=10.204 b=14.176 c=18.041 β=102.530°
catena-[(μ-hydroxo)-bis(μ-selenido)-(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-selenido-tin-thulium |[Tm<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ-OH)<small><sub>2</sub></small>Sn<small><sub>2</sub></small>Se<small><sub>6</sub></small>]||orthorhombic|Pbca|a=12.399 b=13.518 c=20.504 Z=8||2.820|orange||-|bis(bis(μ2-hydroxo)-bis(N-(2-aminoethyl)-N'-(2-((2-aminoethyl)amino)ethyl)ethane-1,2-diamine)-dichloro-di-thulium) hexakis(μ2-selenido)-tetrakis(selenido)-tetra-tin tetrahydrate|[Tm<small><sub>2</sub></small>(tepa)<small><sub>2</sub></small>(μ<small><sub>2</sub></small>-OH)<small><sub>2</sub></small>Cl<small><sub>2</sub></small>]2[Sn<small><sub>4</sub></small>Se<small><sub>10</sub></small>]·4H2O||tetragonal|I41/a|a=28.2080 c=11.0142||2.258|yellow||-||[Hen]4[Tm(en)<sub>4</sub>]2[Ag<sub>6</sub>Sn<sub>6</sub>S<sub>20</sub>]·3en||monoclinic|C2/m|a 14.517 b 24.380 c 13.422 β 94.46°||||[133] |-|catena-((μ2-Hydroxo)-bis(μ2-selenido)-selenide-(tetraethylenepentamine)-tin-ytterbium hemihydrate)|[{Yb(tepa)(μ-OH)}<sub>2</sub>(μ-1κ:2κ-Sn<sub>2</sub>Se<sub>6</sub>)]·H2O||monoclinic|C2/c|a=21.255 b=12.835 c=17.633 β=125.41°|||||-|bis(μ2-Hydroxo)-tetrakis(diethylenetriamine)-di-ytterbium bis(μ2-selenido)-tetraselenido-di-tin|[{Yb(dien)<sub>2</sub>}<sub>2</sub>(μ-OH)<sub>2</sub>]Sn2Se6||monoclinic|P21/n|a=12.026 b=11.666 c=13.819 β=98.971° Z=4|||||-|DBU=1,8-diazabicyclo[5.4.0]undec-7-enecatena-(bis(2,3,4,6,7,8,9,10-Octahydropyrimido(1,2-a)azepin-1-ium) bis(μ3-selenido)-pentakis(μ2-selenido)-di-mercury)|[DBUH]2[Hg<sub>2</sub>Sn<sub>2</sub>Se<sub>6</sub>(Se<sub>2</sub>)]||triclinic|P|a 10.390 b 12.244 c 13.977 α 86.58° β 79.51° γ 70.14° Z=2|1644.3|3.025|yellow|[134] |-|catena-(bis(2,3,4,6,7,8,9,10-Octahydro-1H-pyrimido(1,2-a)azepin-5-ium) (μ3-diselenido)-(μ3-selenido)-pentakis(μ2-selenido)-di-mercury-di-tin)|[DBUH]2[Hg<sub>2</sub>Sn<sub>2</sub>Se5(Se<sub>2</sub>)]||monoclinic|P21/c|a=14.7289 b=18.6045 c=13.5200 β=111.571|3445.33|3.040|red||-|(tetrakis(2,3,4,6,7,8-Hexahydro-1H-pyrrolo[1,2-a]pyrimidin-5-ium) bis(μ3-diselenido)-undecakis(μ2-selenido)-tri-mercury-tetra-tin|[DBNH]4[Hg<sub>3</sub>Sn<sub>4</sub>Se<sub>11</sub>(Se<sub>2</sub>)<sub>2</sub>]||monoclinic|C2/c|a 22.137 b 12.663 c 21.780° β 109.48°|||||-|DBN=1,5-diazabicyclo[4.3.0]non-5-ene|[DBNH]2[HgSnSe<sub>4</sub>]||tetragonal|P42/ncm|a=12.8605 c 6.85560|||band gap 2.46 eV||-||Li4HgSn2Se7||monoclinic|Cc|a 18.286b 7.197 c 10.809 β 93.44°|||red|[135] |-||Li2HgSnSe4||orthorhombic|Pna21|a=14.458 b=8.378 c=6.8215 Z=4|826.3|5.217|red; SHG 6.0 × AgGaS2|[136] |-||Na2HgSn2Se6||tetragonal|I4/mcm|a=7.8571 c=20.214||||[137] |-||Na2Hg3Sn2Se8|1516.81|tetragonal|Pc2|a=9.3749 c=9.790 Z=2|860.5|5.854|red||-||K2HgSnSe4||tetragonal|I4/mcm|a=8.0531Å c=6.9501||||[138] |-|phen = 1,10-phenanthroline; eta = ethanolamine|[Fe(phen)<sub>3</sub>]Hg2Sn2Se7·1.5eta·0.25H2O||triclinic|P|a 13.0238 b 13.6275 c 14.4626 α 81.104° β 88.117° γ 82.840°||||[139] |-|teta = triethylenetetramine|[Ni<sub>2</sub>(teta)<sub>2</sub>(''μ''-teta)]HgSn3Se9||orthorhombic|Pmc21|a 22.731 b 13.2151 c 14.6495|||||-||SrHgSnSe4||orthorhombic|Fdd2|a 21.9027 b 21.9059 c 13.5010|||SHG 5 × AgGaS2|[140] |-||Cs2HgSn3Se8||orthorhombic|P212121|a 7.9196 b 12.6657 c 18.5375|||||-||BaHgSnSe4||orthorhombic|Fdd2|a 22.441 b 22.760 c 13.579|||SHG 5 × AgGaS2||-||Tl4Sn2Se6|||||||tetrahedral edge-shared pairs||-||TlGaSnSe4||monoclinic|P21/c|a=7.501 b= 12.175 c= 18.203 β= 97.164 Z=8|1649.4|5.646|red||-||TlGaSnSe4||cubic|Pa|a=13.4755 Z=12|2447.0|5.770|red||}

References

Notes and References

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