Tellurogallate Explained

Tellurogallates are chemical compounds which contain anionic units of tellurium connected to gallium. They can be considered as gallates where tellurium substitutes for oxygen. Similar compounds include the thiogallates, selenogallates, telluroaluminates, telluroindates and thiostannates. They are in the category of chalcogenotrielates or more broadly tellurometallates or chalcogenometallates.

Formation

Tellurogallates may be produced by heating a metal with gallium and tellurium in a sealed tube.

Properties

Some tellurogallates are semiconductors

Use

Tellurogallates are primarily of research interest. They are investigated for their infrared, thermoelectric and semiconductor characteristics.

List

namechemmwcrystal systemspace groupunit cell ÅvolumedensitycommentCASnoreferences
lithium tellurogallateLiGaTe2321.86tetragonalI2da=6.338 c=11.704 Z=16470.12.937orange to black; band gap 2.41 eV[1] [2]
sodium trigallium pentatellurideNaGa3Te5trigonalR32a=14.58 c=17.761 Z=123269.55.272black[3]
[(C<sub>6</sub>H<sub>5</sub>)<sub>4</sub>P]GaTe2(en)2 en = ethane-1,2-diaminemonoclinicC2/ca=20.680 b=5.3877 c=27.192 β=19.13° 3029.61.720orange[4]
KGaTe2monoclinicC2/ca=11.768, b=11.775, c=16.503, β=100.36°, Z=16[5]
KGaTe2triclinicP1 or Pa=8.34 b=8.34 c=64.4 αβγ~90°4479.44.30[6]
hexapotassium di-μ-telluridobis (ditelluridogallate)K6Ga2Te6monoclinicP121/c1a = 8.616, b = 13.685, c = 11.290, β = 127.61°, Ζ = 21054.6[7]
K[K([18]crown-6)]2[GaTe<sub>3</sub>] · 2CH3CNmonoclinicC2/ma=24.469 b=14.073 c=12.875 β=94.47 Z=443691.784yellow (@113K)[8]
CaGa6Te10monoclinicC2a=14.40 b=14.40 c=10.21 β=90.0 Z=42117.1[9]
Cr3(GaTe3)2amorphous[10]
MnGa2Te4monoclinicC2/ca=11.999, b=11.999, c=24.922, β=104.01°, Z=16[11]
MnGa2Te4orthorhombicPnmaa = 27.448, b = 4.192, c = 6.993 Z=4804.65.82[12]
Fe3(GaTe3)2amorphous
Co3(GaTe3)2amorphous
Ni3-xGaTe2P63/mmca=3.9393 c=15.7933 Z=2[13]
Ni2FeGaTeP63/mmca=3.962 c=15.868 Z=2215.7
CuGaTe2I2da = 6.02348, c = 11.93979433.2[14]
ZnGa2Te4Ia=5.930, c=11.859 Z=25.7[15]
ZnGa2Te4tetragonalI2ma=6.922 c=11.809[16]
ZnGa2Te4F3ma=5.843 Z=1/2
AgGaTe2I2da=6.320 c=11.986 Z=26.052melt 725.7°C; heat of fusion= 104.8 J/g−1[17] [18]
AgGa5Te8tetragonalI41/aa=8.415 c=47.877[19] [20]
Ag2Ga6Te10
Ag9GaTe6hexagonalmelt 710°C Low thermal conductivity[21] [22]
CdGa2Te4tetragonala=5.742 c=10.730[23]
InGaTe2tetragonalI4/mcma = 8.412, c = 6.875; Z = 4; [24]
In2Ga6Te10trigonalR32a=10.34 alpha=89.7 Z=125.78[25]
SnGa6Te10trigonalP3121/6a=14.408 c=17.678 Z=631785.684black[26]
SnxGa1-xTe x=1/2cubica=6.315251.84[27]
β-BaGa2Te4orthorhombicImmaa = 23.813, b = 11.967, c = 6.7215[28]
Ba5Ga2Ge3Te12monoclinicP21/ca = 13.6540, b = 9.6705, and c = 23.1134 β =91.829
LaGaITe2orthorhombicPmc21[29]
CeGaITe2orthorhombicPmc21
PrGaITe2orthorhombicPmc21
NdGaITe2orthorhombicPmc21
Eu0.81Ga2Te4tetragonalI4/mcma = 8.2880, c = 6.744, Z = 2463.24[30]
HgGa2Te4cubicF3ma=6.002 Z=1216.22[31]
HgGa2Te4tetragonalI2ma=6.025 c=12.037 Z=2436.95black
TlGaTe2tetragonalI4/mmm D184ha=8.429 c=6.865band gap 0.84 eV[32] [33]
Tl2InGaTe4tetragonalI4mcm[34]
PbGa6Te10trigonalP3221/6a=14.465 c=17.718 Z=632105.898black[35]

Notes and References

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  2. Isaenko . L. . Krinitsin . P. . Vedenyapin . V. . Yelisseyev . A. . Merkulov . A. . Zondy . J.-J. . Petrov . V. . 2005-07-01 . LiGaTe 2 : A New Highly Nonlinear Chalcopyrite Optical Crystal for the Mid-IR . Crystal Growth & Design . en . 5 . 4 . 1325–1329 . 10.1021/cg050076c . 1528-7483.
  3. 1996-09-01 . Kienle . L. . Deiseroth . H. J. . Crystal structure of natrium trigallium pentatelluride, NaGa 3 Te 5 . Zeitschrift für Kristallographie - Crystalline Materials . en . 211 . 9 . 629 . 10.1524/zkri.1996.211.9.629 . 1996ZK....211..629K . 2194-4946. Kienle . L. . Deiseroth . H. J. .
  4. Warren . Christopher J. . Ho . Douglas M. . Haushalter . Robert C. . Bocarsly . Andrew B. . 1994 . Electrochemical synthesis of a new gallium telluride containing one-dimensional chains: structure of [(C6H5)4P]GaTe2(en)2(en = ethane-1,2-diamine) ]. Journal of the Chemical Society, Chemical Communications . en . 3 . 361–363 . 10.1039/c39940000361 . 0022-4936.
  5. Kim . Joonyeong . Hughbanks . Timothy . February 2000 . Synthesis and Structures of Ternary Chalcogenides of Aluminum and Gallium with Stacking Faults: KMQ2 (M=Al, Ga; Q=Se, Te) . Journal of Solid State Chemistry . en . 149 . 2 . 242–251 . 10.1006/jssc.1999.8523. 2000JSSCh.149..242K .
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