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Synthesis and structural characterization of diorganotin(IV) complexes with 2,6-pyridinedicarboxylic acid

, , , , , and . APPLIED ORGANOMETALLIC CHEMISTRY, 22 (1): 19-24 (January 2008)
DOI: {10.1002/aoc.1343}

Abstract

Two new diorganotin(IV) derivatives of 2,6-pyridinedicarboxylic acid, \Ph2Sn(2,6-C5H3N)(COO)(2)Na(2,6-C5H3N)(COOH) (COO)(CH3OH)(2)\ (1) and Me2Sn(2,6-C5H3N)(COO)(2)(H2O)center dot H2O (2) were synthesized by the reaction of Ph3SnCl and PhMe(2)Snl with 2,6-pyridinedicarboxylic acid, respectively in the presence of sodium methoxide or potassium iso-propoxide. The prepared compounds were characterized by mass spectrometry, IR, H-1, C-13 and Sn-119 NMR spectroscopies. The molecular structures of both complexes were determined by a single-crystal X-ray analysis. The X-ray structure revealed pentagonal bipyramidal geometry around the tin atom for compound 1, which is incorporated with a hexacoordinated monosodium derivative of 2,6-pyridinedicarboxylic acid. Complex 2 adopts a monomeric structure with two carboxylate oxygen atoms coordinated to tin in monodenate form from equatorial positions, and the coordination number is raised to six as the oxygen of water and pyridine nitrogen occupies the other equatorial positions of octahedron. Copyright (C) 2007 John Wiley & Sons, Ltd.

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