Syntheses and Crystal Structures of Triorganotin (IV) Derivatives with 2,2′-Bipyridine-4,4′-Dicarboxylic Acid

Four organotin complexes with 2 2'-bipyridine-4,4'-dicarboxylic acid, H(2)dcbp: (Ph3Sn)(2)(dcbp) 1, [(PhCH2)(3)Sn](2)(dcbp) center dot 2CH(3)OH 2, [(Me3Sn)(2)(dcbp)](n) 3, [(Bu3Sn)(2)(dcbp)](n) 4 have been synthesized. The complexes 1-4 were characterized by elemental, IR, H-1, C-13, Sn-119 NMR, and X-ray crystallographic analyses. Crystal structures show that complex 1 is a monomer with one ligand coordinated to two triorganotin moieties, and a ID infinite polymeric chain generates via intermolecular C-H center dot center dot center dot N hydrogen bond; complex 2 is also a monomer and forms a 2D network by intermolecular O-H center dot center dot center dot O weak interaction; both of complexes 3 and 4 form 2D network structures where 2,2'-bipyridine-4,4'-dicarboxylate acts as a tetradentate ligand coordinated to trimethylin and tri-n-butylin ions, respectively. (C) 2009 Wiley Periodicals, Inc. Heteroatom Chem 20:19-28, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20506