The arsenite bromides are mixed anion compounds containing both arsenite and bromide ions. Similar compounds include arsenate bromides, arsenite chlorides, antimonite bromides, antimonite chlorides, 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 | ||
| In4(As2O5)(As3O7)Br3 | triclinic | P1 | 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 | |||
| La3OBr[AsO3]2 | tetragonal | P42/mnm | a = 13.043 c = 5.6127 Z=4 | 954.8 | 5.27 | colourless | |||
| Ce3OBr[AsO3]2 | |||||||||
| Nd3OBr[AsO3]2 | |||||||||
| Sm3OBr[AsO3]2 | |||||||||
| Gd3OBr[AsO3]2 | |||||||||
| Tb3OBr[AsO3]2 | |||||||||
| Tm3Br2[As2O5][AsO3] | triclinic | P1 | a = 5.3496 b = 8.6926 c = 10.8184 α = 90.723° β = 94.792° γ = 90.119° Z=2 | 6.760 | pale yellow | ||||
| Beudantite | PbFe3(OH)6SO4AsO4 | trigonal | R3m | a = 7.32, c = 17.02 Z=3 | 789.79 | 4.48 | Uniaxial (-) nω = 1.957 nε = 1.943 Birefringence: 0.014 | ||
| 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 |
References
- ^ a b c Yahia, Hamdi Ben; Pöttgen, Rainer; Rodewald, Ute Ch. (2010-10-01). "Crystal Structure of La 3 OBr[AsO 3 ] 2". Zeitschrift für Naturforschung B. 65 (10): 1289–1292. doi:10.1515/znb-2010-1018. ISSN 1865-7117. S2CID 196918204.
- ^ Locke, Ralf J. C.; Goerigk, Felix C.; Schäfer, Martin J.; Höppe, Henning A.; Schleid, Thomas (2022). "Synthesis, crystal structures and spectroscopic properties of pure YSb 2 O 4 Br and YSb 2 O 4 Cl as well as Eu 3+ - and Tb 3+ -doped samples". RSC Advances. 12 (2): 640–647. doi:10.1039/D1RA08382A. ISSN 2046-2069. PMC 8693579. PMID 35425089.
- ^ Karpenko, Vladimir Yu.; Pautov, Leonid A.; Siidra, Oleg I.; Mirakov, Mirak A.; Zaitsev, Anatoly N.; Plechov, Pavel Yu.; Makhmadsharif, Saimudasir (February 2023). "Ermakovite (NH 4 )(As 2 O 3 ) 2 Br, a new exhalative arsenite bromide mineral from the Fan-Yagnob coal deposit, Tajikistan". Mineralogical Magazine. 87 (1): 69–78. Bibcode:2023MinM...87...69K. doi:10.1180/mgm.2022.116. ISSN 0026-461X. S2CID 252906686.
- ^ Pekov, Igor V.; Britvin, Sergey N.; Krivovichev, Sergey V.; Yapaskurt, Vasiliy O.; Vigasina, Marina F.; Turchkova, Anna G.; Sidorov, Evgeny G. (1 April 2021). "Vasilseverginite, Cu9O4(AsO4)2(SO4)2, a new fumarolic mineral with a hybrid structure containing novel anion-centered tetrahedral structural units". American Mineralogist. 106 (4): 633–640. Bibcode:2021AmMin.106..633P. doi:10.2138/am-2020-7611. S2CID 226659801.
- ^ a b c d e f Goerigk, Felix C.; Schander, Svetlana; Wickleder, Mathias S.; Schleid, Thomas (2020-07-15). "The Triclinic Lanthanoid(III) Halide Oxidoarsenates(III) Sm 3 Cl 2 [As 2 O 5 ][AsO 3 ] and Tm 3 Br 2 [As 2 O 5 ][AsO 3 ]". Zeitschrift für anorganische und allgemeine Chemie. 646 (13): 985–991. doi:10.1002/zaac.201900360. ISSN 0044-2313. S2CID 225602969.
- ^ "Beudantite". www.mindat.org. Retrieved 2022-05-25.
- ^ "Gallobeudantite". www.mindat.org. Retrieved 2022-05-24.