
TY  - JOUR
A1  - Sutton, GJ 
T1  - Some Studies in Inorganic Complexes. IX. The Pyrolysis of Hexammineosmium(III) Salts
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1961
VL  - 14
IS  - 1
SP  - 33
EP  - 36
KW  - 
UR  - https://doi.org/10.1071/CH9610033 
N2  - A study has been made of the action of heat on the salts Os(NH3)6ISO4 and Os(NH3)6X3, in which X is bromide or iodide. The initial products are [OsI(NH3)5]SO4 and [OsX(NH3)5]X2 respectively. At higher temperatures the latter decompose into black double-halogen bridged complexes [(NH3)3XOsX20sX(NH3)3]X2, while the sulphate forms a black residue of composition corresponding to Os(NH3)3ISO4 but of unknown structure. Further heating results in oxidation to OsO4 and halogen in all cases. The structures of the black halogen complexes as well as the monohalogenopentammineosmium(III) salts have been verified by magnetic and conductance measurements. However, since osmium(IV) shows a remarkable tendency towards maximum electron pairing, having a moment of 1.2-1.5 Bohr magnetons in most of its complexes, the black compounds could have the less symmetrical structure [Os(III)X(NH3)5][Os(IV)X5NH2]. 
ER  -

