六溴合锇(IV)酸铵 是一种配位化合物 ，化学式为(NH4 )2 OsBr6 ，它是立方 晶体 ，晶胞参数a=8.94 Å。[2] 四氧化锇 、氢溴酸 和溴化铵 为原料来制备：[1]
OsO
4
+
10
HBr
⟶
H
2
[
OsBr
6
]
+
2
Br
2
+
4
H
2
O
{\displaystyle {\ce {OsO4 + 10 HBr -> H2[OsBr6] + 2 Br2 + 4 H2O}}}
H
2
[
OsBr
6
]
+
2
NH
4
Br
⟶
(
NH
4
)
2
[
OsBr
6
]
+
2
HBr
{\displaystyle {\ce {H2[OsBr6] + 2 NH4Br -> (NH4)2[OsBr6] + 2 HBr}}}
六溴合锇(IV)酸铵可以在异腈t 四氢呋喃 还原为trans -OsBr2 (CNBut 4 。[3] 氢溴酸 酸化的乙醇中和Ph2 RAs回流反应，可以得到Os(III)的配合物OsBr3 (Ph2 RAs)3 （R为烷基）。[4] 3 )4 ]Cl2 反应，可以得到[M(NH3 )4 ][OsBr6 ]（M=Pd, Pt）。[5]
参考文献 [ 编辑 ]
^ 1.0 1.1 1.2 F. P. Dwyer, J. W. Hogarth, Richard N. Rhoda. Therald Moeller , 编. Ammonium Hexabromoosmate(IV) . Hoboken, NJ, USA: John Wiley & Sons, Inc. 2007-01-05: 204–206 [2020-12-23 ] . ISBN 9780470132364doi:10.1002/9780470132364.ch59 ^ Parlog, Constanta; Ciomartan, D.; Sandulescu, D.; Negoiu, D. Crystal structure of ammonium hexahaloenoosmiate and its dinitrogen compounds. Revue Roumaine de Chimie , 1974. 19 (8): 1303-1306. ISSN: 0035-3930.
^ Richard A. Jones, Bruce R. Whittlesey, Jerry L. Atwood, William E. Hunter. Synthesis and x-ray crystal structure of OsBr2(CNBut)4·2CH2Cl2 . Polyhedron. 1984-01, 3 (3): 385–387 [2020-12-23 ] . doi:10.1016/S0277-5387(00)88128-0 原始内容 存档于2018-06-12） （英语） . ^ K G Srinivasamurthy, N M Nanje Gowda, E G Leelamani, G K N Reddy. Complexes of osmium with tertiary arsines and carbonmonoxide . Journal of Chemical Sciences. 1980-04, 89 (2): 101–108 [2020-12-23 ] . ISSN 0253-4134 doi:10.1007/BF02892993 （英语） . ^ Gromilov, S. A.; Korenev, S. V. Synthesis and X-ray diffraction study of [M(NH3)4][OsBr6]. Journal of Structural Chemistry (Translation of Zhurnal Strukturnoi Khimii) , 2002. 43 (3): 527-529. ISSN: 0022-4766.
![{\displaystyle {\ce {OsO4 + 10 HBr -> H2[OsBr6] + 2 Br2 + 4 H2O}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1f7531ed12abe8d7b47ae88639f32e1510221a61)
![{\displaystyle {\ce {H2[OsBr6] + 2 NH4Br -> (NH4)2[OsBr6] + 2 HBr}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/4b9bc51f5c179bf426fef43683c7e7c826929217)