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Interaction of potassium hexahalogenoosmates(IV) with DMSO

Abstract

Interaction of К2 [OsX6], where X=Cl, Br ( СOs = n · 10-4 – n · 10-2 mol/l) with DMSO has been studied by electronic absorption spectroscopy at room temperature and heating. It was established that interaction was accompanied by replacement of halide-ions in [OsX6]2- with DMSO molecules and reduction of osmium(IV) to osmium(III), and then to osmium(II). The intermediate forms were defined: [OsIV(dmso-O)Br5] and [OsIII(dmso-S)2Br4]. The final product of the interaction in solution in case of heating was cis,fac-[OsII(dmso-S)3(dmso-O)X2], which slowly isomerizes to trans-[OsII(dmso-S)4 Х2 ] at room temperature .

About the Authors

O. V. Rudnitskaya
Peoples’ Friendship University of Russia, Moscow, 117198
Russian Federation


Е. К. Kultyshkina
Peoples’ Friendship University of Russia, Moscow, 117198
Russian Federation


Е. V. Dobrokhotova
Peoples’ Friendship University of Russia, Moscow, 117198
Russian Federation


References

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Review

For citations:


Rudnitskaya O.V., Kultyshkina Е.К., Dobrokhotova Е.V. Interaction of potassium hexahalogenoosmates(IV) with DMSO. Fine Chemical Technologies. 2013;8(2):74-78. (In Russ.)

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