Potassium Hexahydroperoxostannate:
Synthesis and Structure

E. G. Ippolitov*, T. A. Tripol’skaya*, P. V. Prikhodchenko*, and D. A. Pankratov**

* Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences,
Leninskii pr. 31, Moscow, 117907 Russia

** Moscow State University, Vorob’evy gory, Moscow, 117234 Russia

Received December 27, 2000

Abstract—Polycrystalline potassium hexahydroperoxostannate was prepared by replacement of hydroxo
groups in potassium hexahydroxostannate upon its dissolution in hydrogen peroxide. A comparative study of
the product and the starting hydroxostannate by powder X-ray diffraction analysis, thermogravimetry, and IR,
H, 39K, and 119Sn NMR, and Mössbauer spectroscopy was carried out. The peroxo compound K2Sn(OOH)6
crystallizes in the hexagonal system with a = 7.264(7) Å, c = 10.168(4) Å. IR, NMR, and Mössbauer spectros-
copy data show that the tin coordination polyhedron in the peroxo compound is an octahedron formed by the
coordinated hydroperoxo groups.

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