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Three types of di- and trimethyltin(IV) polymers [MeSn(CHNO)] · 4HO 1, [(MeSn)(CHNO)] · HO 2 and [(MeSn)(CHNO)] · CHOH 3 have been synthesized by the reaction of trimethyltin chloride with benzimidazole-5,6-dicarboxylic acid under three different experimental conditions. All the complexes were characterized by elemental analysis, IR, NMR (H, C, Sn) spectroscopy and X-ray crystallography diffraction analysis. The structure analyses reveal that complex 1 has a 1D helical chain in which benzimidazole-5,6-dicarboxylic acid act as a tetradentate ( O, O-chelation) ligand coordinating to dimethyltin (IV) ions, two water molecules take part in the coordination giving seven-coordinated tin centers in the component. Complex 2 and 3 are 2D and 3D corrugated polymers in which the deprotoned acid as tetradentate ligand affords by three oxygen atoms and a nitrogen atom. [ABSTRACT FROM AUTHOR]

novel 3D tri- n-butyltin complex [( n-BuSn)(CHNSCO)] ( 1) has been solvothermally synthesized and structurally characterized by elemental analysis, FT-IR, NMR (H, C, and Sn) spectra and X-ray crystallography. X-ray data of complex 1 reveals that it is a 3D tri- n-butyltin coordination polymer with a metal-organic framework (MOF) structure , significant N → Sn interactions plays an important role in the construction of this structure. [ABSTRACT FROM AUTHOR]