Antimonide bromide explained

Antimonide bromides or bromide antimonides are compounds containing anions composed of bromide (Br⁻) and antimonide (Sb³⁻). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the antimonide chlorides, antimonide iodides, arsenide chlorides, arsenide bromides, arsenide iodides, phosphide chlorides, phosphide bromides, and phosphide iodides.^[1] The bromoantimonates have antimony in positive oxidation states.

The antimony can be linked into chains, in which case it has a formal oxidation state of −1. Alternately it can be in pairs as Sb₂, with an oxidation state of −2 for each atom.

Many of these compounds are clathrates, whereby there are two interpenetrating structures that are only weakly bound to each other by van der Waals force.

List

formula	system	space group	unit cell Å	volume	density	comment	ref
Ge38Sb8Br8	cubic	P3n	a=10.7893	756.5		clathrate	^[2]
Cd2SbBr2	monoclinic	P21	a=8.244 b=9.920 c=8.492 β=116.80			Contains Sb-Sb^4−	^[3]
Hg6Sb5Br7	cubic	Pa	a=13.003 Z=4	2198.6	7.165	black
Hg7Sb4Br6	cubic	Pa3	a = 12.9940 Z = 4			black	^[4] ^[5]
Hg19Sb10Br18
(Hg13Sb8)(ZnBr4)4	orthorhombic	Pnma	a=27.120 b=12.965 c=14.579 Z=4	4126	6.637		^[6]
Sb2Hg3GaBr4	orthorhombic	Pnma	a = 13.7549, b = 12.690, c = 14.7819, Z = 8			red	^[7]
[Hg<sub>6</sub>Sb<sub>4</sub>](InBr6)Br	cubic	Pa	a = 12.8542 Z=4	2123.91	7.395	dark red	^[8]
Hg12Sb6(Br5.186I6.814)	triclinic	P	a = 7.791 b = 11.680 c = 12.404 α = 112.76° β = 99.99° γ = 102.04° Z=1	976,7	7.477	orange; band gap 2.1 eV	^[9]
Hg3Sb2TlBr3	orthorhombic	Pbcm	a = 6.610, b = 13.112 c = 13.071			black	^[10]
Hg6Sb4BiBr7	cubic	Pa	a=12.998 Z=4	2196.0	7.437	black	^[11]

Notes and References

1. Shevelkov . A. V. . Shatruk . M. M. . [No title found] . Russian Chemical Bulletin . 2001 . 50 . 3 . 337–352 . 10.1023/a:1011351532249. 94548971 .
2. Menke . Heinz . von Schnering . Hans Georg . January 1973 . Die Käfigverbindungen Ge38A8X8mit A = P, As. Sb und X = Cl, Br, J . Zeitschrift für anorganische und allgemeine Chemie . de . 395 . 2–3 . 223–238 . 10.1002/zaac.19733950211 . 0044-2313.
3. L.N. . Reshetova . A.V. . Shevel'kov . B.A. . Popovkin . 1999 . Synthesis and crystal structure of Cd₂SbBr₂ . Koordinatsionnaya Khimiya . Russian . 25 . 11 . 0132-344X.
4. Shevelkov . A.V. . Dikarev . E.V. . Popovkin . B.A. . May 1992 . The crystal structure of Hg₇Sb₄Br₆ . Journal of Solid State Chemistry . en . 98 . 1 . 133–136 . 10.1016/0022-4596(92)90078-A. 1992JSSCh..98..133S .
5. Book: Macintyre . Jane E. . Dictionary of Inorganic Compounds . 23 July 1992 . CRC Press . 978-0-412-30120-9 . 13 . en.
6. Jiang . Xiao-Ming . Yan . Zhi-Bo . Liu . Dan . Wang . Ke-Feng . Guo . Guo-Cong . Li . Shao-Zhen . Liu . Jun-Ming . October 2014 . Large and Fast Single-Crystal Resistive Humidity Sensitivity of Metal Pnictide Halides Containing van der Waals Host-Guest Interactions . Chemistry: An Asian Journal . en . 9 . 10 . 2872–2879 . 10.1002/asia.201402572. 25110860 . free .
7. Schlirf . J. . Deiseroth . H. J. . January 2007 . Sb2Hg3GaBr4: A New Supramolecular Framework Structure with [Sb2Hg4/2]±0 Building Blocks Isosteric to Distibane ]. Zeitschrift für anorganische und allgemeine Chemie . de . 633 . 1 . 47–50 . 10.1002/zaac.200600180.
8. Zou . Jian-Ping . Guo . Sheng-Ping . Jiang . Xiao-Ming . Liu . Guang-Ning . Guo . Guo-Cong . Huang . Jin-Shun . September 2009 . Synthesis, crystal and band structures, and optical properties of a new supramolecular complex: [Hg6Sb4](InBr6)Br ]. Solid State Sciences . en . 11 . 9 . 1717–1721 . 10.1016/j.solidstatesciences.2009.05.021. 2009SSSci..11.1717Z .
9. Kheit . Messaoud . Merazka . Soumia . Kars . Mohammed . Gómez-Herrero . Adrian . Roisnel . Thierry . Sidoumou . Mohamed . 2022 . Etude expérimentale et théorique d'un nouveau composé halogène pnicture Hg₁₂Sb₆(Br_5,186I_6,814) . Comptes Rendus. Chimie . 25 . G1 . 189–203 . 10.5802/crchim.191 . 251548809 . 1878-1543. free .
10. Polykationische Hg-Pnictid-Gerüste mit einer neuen Füllungsvariante in den Strukturen von Hg₃As₂TlCl₃ und Hg₃Sb₂TlBr₃. Zeitschrift für Anorganische und Allgemeine Chemie. 2001. 10.1002/1521-3749(200108)627:8<2016::AID-ZAAC2016>3.0.CO;2-N. Beck. Johannes. Neisel. Udo. 627. 8. 2016–2022.
11. Beck . Johannes . Hedderich . Sylvia . Neisel . Udo . November 2000 . Synthesis and Crystal Structures of Hg₆Sb₅Br₇, Hg₆As₄BiCl₇, and Hg₆Sb₄BiBr₇, Built of a Polycationic Mercury-Pnictide Framework with Trapped Anions . Journal of Solid State Chemistry . en . 154 . 2 . 350–355 . 10.1006/jssc.2000.8794. 2000JSSCh.154..350B .