Structural chemistry of mononuclear, tetranuclear and hexanuclear organotin(IV) carboxylates from the reaction of di-n-butyltin oxide or diphenyltin oxide with rhodanine-N-acetic acid

摘要

Three new organotin(IV) carboxylates, {[n-Bu2Sn(O2CC4H4NOS2)](2)O}(2) (1), n-Bu2Sn(O2CC4H4NOS2)(2) (2) and [PhSn(O)O-2-CC4H4NOS2](6) - 3H(2)O (3) were synthesized by the reaction of di-n-butyltin/diphenyltin oxide and rhodanine-N-acetic acid. The complexes 1-3 are characterized by elemental, IR, H-1, C-13 and Sn-119 NMR and X-ray crystallography diffraction analyses. The complex 1 has a tetranuclear structure based on a planar four-membered Sn2O2 ring, while complex 2 is a hexa-coordinated monomer. As for complex 3, it adopts the hexameric drum-shaped structure. The supramolecular structure of 1 has been found to consist of one-dimensional molecular chain built up by intermolecular non-bonded S---O interactions. The salient feature of the supramolecular structure of complex 2 is that of a one-dimensional polymer, in which intermolecular Sn---O, S---O and S---S interactions are recognized. (c) 2005 Elsevier B.V. All rights reserved.