R. Okawara, M. Wada
Oct 1, 1963
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Journal
Journal of Organometallic Chemistry
Abstract
Abstract Distannoxane derivatives of types XR2SnOSnR2OH and XR2SnOSnR2OR′ were mainly prepared from XR2SnOSnR2X. The preparation and properties of nineteen compounds, of which nine are new compounds, are described. These compounds were found to be dimeric in solution. Dimerization of these distannoxanes results by the pairing of two SnOSn bonds to form a four-membered ring, in which two kinds of tin atoms, tetra- and penta-coordinated, are involved. In the two types of derivatives discussed, it is suggested that an additional intramolecular coordination within the dimer or intermolecular coordination in the solid from each oxygen atom of the OH or OR′ group to each tetra-coordinated tin atom is possible. In this way we have all tin atoms penta-coordinated, and we can interpret the peculiar stability of the SnOH toward condensation and the absence of isomers in these derivatives.