Five new dicarboxylate organotin complexes under hydrothermal condition: Syntheses, characterization and crystal structures of 1D, 2D and 3D polymers constructed from dimeric tetraorganodistannoxane units

Five new diorganotin(IV) complexes of the types {(Me₂Sn)₂μ₄-(C₈H₃NO₆)](μ₃-O)}_n (1), {(Me₂Sn)₂μ₃-(C₈H₈O₄)](μ₃-O)}_n (2), {(Me₂Sn)₂μ₄-(C₈H₁₀O₄)](μ₃-O)}_n (3) {(Me₂Sn)₂μ₄-(C₈H₁₀O₄)](μ₃-O)}_n (4) and {(Me₂Sn)₂μ₄-(C₁₀H₁₄O₄)](μ₃-O)}_n (5) have been synthesized by reactions of 5-nitroisophthalic acid, meso-cis-4-cyclohexene-1,2-dicarboxylic, meso-cis-1,4-cyclohexanedicarboxylic acid, meso-cis-1,3-cyclohexanedicarboxylic acid and chiral cis-(1R,3S)-(+)-camphoric acid with trimethyltin chloride under hydrothermal condition. All complexes were characterized by elemental analysis, IR, ¹H NMR, ¹³C NMR, ¹¹⁹Sn NMR and X-ray crystallography. The structural analyses show that complex 1 has a 1D infinite polymeric chain in which 5-nitroisophthalic acid acts as a tetradentate ligand coordinating to dimethyltin(IV) ions, complexes 2, 3 and 4 possess 2D polymeric structures in which dicarboxylate acid act as tridentate or tetradentate ligands coordinating to dimethyltin(IV) ions, complex 5 possesses a irregular 3D framework in which chiral cis-(1R,3S)-(+)-camphoric acid acts as a tetradentate ligand coordinating to dimethyltin(IV) ions.