Cesium hydroperoxostannate: first complete structural characterization of a homoleptic hydroperoxocomplex

Andrei V Churakov; Sergey Sladkevich; Ovadia Lev; Tatiana A Tripol'skaya; Petr V Prikhodchenko

doi:10.1021/ic100554u

Cesium hydroperoxostannate: first complete structural characterization of a homoleptic hydroperoxocomplex

Inorg Chem. 2010 Jun 7;49(11):4762-4. doi: 10.1021/ic100554u.

Authors

Andrei V Churakov¹, Sergey Sladkevich, Ovadia Lev, Tatiana A Tripol'skaya, Petr V Prikhodchenko

Affiliation

¹ Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii prosp.31, Moscow 119991, Russia.

PMID: 20459061
DOI: 10.1021/ic100554u

Abstract

The crystal structure of cesium hexahydroperoxostannate Cs(2)Sn(OOH)(6) is presented. The compound was characterized by single crystal and by powder X-ray diffraction, FTIR, (119)Sn MAS NMR, and TG-DTA. Cs(2)Sn(OOH)(6) crystallizes in the trigonal space group P3, a = 7.5575(4), c = 5.1050(6) A, V = 252.51(4) A(3), Z = 1, R(1) = 0.0120 (I > 2sigma(I)), wR(2) = 0.0293 (all data), and comprises cesium cations and slightly distorted octahedral [Sn(OOH)(6)](2-) anions lying on the threefold axis. The [Sn(OOH)(6)](2-) unit forms 12 interanion hydrogen bonds resulting in anionic chains spread along the c-axis. All six hydroperoxo ligands are crystallographically equivalent; O-O distances are 1.482(2), only slightly longer than the O-O distance in hydrogen peroxide. FTIR and (119)Sn MAS NMR reveal the similarity between all alkali hydroperoxostannates.