Arsenide bromide
Class of chemical compounds
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Arsenide bromides or bromide arsenides are compounds containing anions composed of bromide (Br−) and arsenide (As3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the arsenide chlorides, arsenide iodides, phosphide bromides, and antimonide bromides.
List
| formula | system | space group | unit cell Å | volume | density | comment | ref |
|---|---|---|---|---|---|---|---|
| (Ca2−x□x)(As1−xBr1+x) Ca2AsBr | cubic | a=6.05 | 3.47 | yellow, or dark brown | [1][2] | ||
| Ca3AsBr3 | cubic | Pm3 | a=5.91 | 3.48 | colourless or yellow | [1][2] | |
| Cu6AsS5Br | cubic | F43m | a=9.8763 | 4.80 | [3][4] | ||
| (Ge38As8)+8⋅8 I− | cubic | Pm3n | a=10.625 | 5.71 | semiconductor resistivity 1 Ω cm; band gap 0.9 eV; silvery grey | [5] | |
| I8As21Ge25 | cubic | Pm3n | a=10.5963 Z=1 | 1189.77 | 6.143 | colourless | [6] |
| Cd2As3Br | monoclinic | C2/c | a = 8.281, b = 9.411, c = 7.993, β = 101.49°, z = 4 | 5.76 | black | [7][8] | |
| Cd4As2Br3 | cubic | Pa3 | a=12.61 | 5.51 | semiconductor band gap 1.8 eV | [9] | |
| Cd4PAsBr3 | cubic | Pa3 | a=12.521 | 5.38 | [10][4] | ||
| Cd4As2I1.5Br1.5 | cubic | Pa3 | a=12.83 | [11][4] | |||
| La3AsBr3 | cubic | I4132 | a=12.09 | 5.50 | [12] | ||
| Pr3AsBr3 | cubic | I4132 | a=12.02 | 5.64 | [12] | ||
| Hg2As3Br | monoclinic | C2/c | a = 8.0914, b = 9.300, c = 8.1084, β = 99.323°, z = 4 | 7.79 | black | [7] | |
| Hg4As2Br3 | cubic | Pa3 | a=12.610 Z=8 | 2012.4 | 5.54 7.90 | red; dark grey | [13][14] |
| Hg19As10Br18 | triclinic | P1 | a = 11.262, b = 11.352, c = 12.309, α = 105.724, β = 105.788, γ = 109.078° | 1314.3 | dark brown | [15] | |
| (HgBr2)3(As4S4)2 | monoclinic | P21/c | a = 9.593, b = 11.395, c = 13.402, β = 107.27, Z = 2 | 1399 | [16] | ||
| Hg3AsS4Br | hexagonal | P63mc | a = 7.430, c = 9.364 Z=2 | [17] | |||
| (Hg6As4)[TiBr6]Br | cubic | Pa3 | a= 1230.9 | [18] | |||
| [Hg6As4](CrBr6)Br | cubic | Pa | a=12.275 | [Hg6As4]4+ framework with 2 kinds of cavity; band gap 1.5 eV | [19] | ||
| [Hg6As4](FeBr6)Hg0.6 | cubic | Pa | a=12.332 | [Hg6As4]4+ framework with 2 kinds of cavity; band gap 1.5 eV | [19] | ||
| [Hg6As4](CuBr3)2 | monoclinic | I2/a | a = 14.884, b = 9.358, c = 20.413, β=92.88°, Z = 6 | dark red | [20] | ||
| [Hg11As4](GaBr4)4 | monoclinic | C2/m | [21] | ||||
| Hg3AsSe4Br | hexagonal | P63mc | a = 7.707, c = 9.47 Z=2 | [17] | |||
| (Hg2Cd2As2Br)Br | orthorhombic | Pmma | a = 8.791, b = 4.701, c = 9.779, Z=2 | 404.2 | 7.688 | dark red | [22] |
| (Hg6As4)(CdBr6) | cubic | Pa3 | a=12.3738 Z=4 | 1894.6 | 7.345 | red; air stable; band gap 1.94 | [23] |
| [Hg6As4][InBr6]Br | cubic | Pa3 | a=12.3511 Z=4 | 1884.2 | dark red | [24] | |
| [Hg4As2](InBr3.5As0.5) | Hexagonal | P63/mmc | a = 7.7408, c = 12.535, Z=2 | 650.47 | [25] | ||
| [Hg6As4Br3](SnBr3) | cubic | P213 | a=12.383 Z=4 | [26] | |||
| [Hg6As4][YbBr6]Br | cubic | Pa3 | a=12.362 Z=4 | 1889.1 | 7.860 | dark red | [27] |
| Hg9As4Bi2Br12 | tetragonal | P43 | a=10.865 b=10.865 c=28.357 Z=4 | 3347.5 | 6.91 | orange | [28] |