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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