Английская Википедия:Arsenite bromides
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Шаблон:Short description The arsenite bromides are mixed anion compounds containing both arsenite and bromide ions. Similar compounds include arsenate bromides,[1] arsenite chlorides,[1] antimonite bromides, antimonite chlorides,[2] and ...
They are in the category of halide oxidoarsenates(III)
List
| chem | mw | crystal system | space group | unit cell Å | volume | density | comment | references | |
|---|---|---|---|---|---|---|---|---|---|
| Ermakovite | (NH4)(As2O3)2Br | hexagonal | P6/mmm | a = 5.271 c = 9.157 Z = 1 | 220.3 | 3.64 | uniaxial (–), ω = 1.960 ɛ = 1.716 at 589 nm | [3] | |
| In4(As2O5)(As3O7)Br3 | triclinic | PШаблон:Overbar | a=7.998 b=10.532 c=11.952 α=70.92° β=79.62° γ=80.27° Z=2 | 928 | 4.527 | stable to 530°C | [4] | ||
| La3OBr[AsO3]2 | tetragonal | P42/mnm | a = 13.043 c = 5.6127 Z=4 | 954.8 | 5.27 | colourless | [1] | ||
| Ce3OBr[AsO3]2 | [5] | ||||||||
| Nd3OBr[AsO3]2 | [5] | ||||||||
| Sm3OBr[AsO3]2 | [5] | ||||||||
| Gd3OBr[AsO3]2 | [5] | ||||||||
| Tb3OBr[AsO3]2 | [5] | ||||||||
| Tm3Br2[As2O5][AsO3] | triclinic | PШаблон:Overbar | a = 5.3496 b = 8.6926 c = 10.8184 α = 90.723° β = 94.792° γ = 90.119° Z=2 | 6.760 | pale yellow | [5] | |||
| Beudantite | PbFe3(OH)6SO4AsO4 | trigonal | RШаблон:Overbarm | a = 7.32, c = 17.02 Z=3 | 789.79 | 4.48 | Uniaxial (-) nω = 1.957 nε = 1.943 Birefringence: 0.014 | [6] | |
| Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 | trigonal | R3m | a = 7.225, c = 17.03 Z=3 | 769.88 | 4.87 | uniaxial (–) nω = 1.763 nε = 1.750 | [7] |
References
