Self-assembled triorganotin(iv) moieties with 1,3,5-benzenetricarboxylic acid: Syntheses and crystal structures of monomeric, helical, and network triorganotin(iv) complexes

摘要

A series of novel triorganotin(IV) complexes of the type [(R3Sn)(3)(TMA)]center dot Y center dot L [R = CH3, Y = 3CH(3)OH (1); R = CH3, Y = 2CH(3)OH (2); R = C6H5CH2 (3); R = o-F-C6H4CH2 (4); R = o-Cl-C6H4CH2 (5); R C6H5, L CH2Cl2 (6); R = C6H5, L = EtOH center dot 2H(2)O (7); R C6H5, L Et2O center dot CH2Cl2 (8); H(3)TMA = 1,3,5-benzenetricarboxylic acid] and [(CH3)(3)Sn](2)(HTMA)H2O (9) have been synthesized. All complexes were characterized by elemental analysis and by IR, H-1, C-13, and Sn-119 NMR spectroscopy. Except for 4 and 5, all complexes were also characterized by X-ray crystallography, Complex I possesses a network structure where TMA acts as a tridentate ligand coordinated to three trimethyltin(IV) moieties and three methanol molecules that are involved in a hydrogen-bond system, whereas 2 possesses a helical structure where TMA acts as a tetradentate ligand coordinated to three trimethyltin(IV) ions and two methanol molecules that bend into the helical turn in the intra-helix hydrogen-bond system. Complexes 3-8 are monomeric structures where TMA acts as a hexadentate ligand coordinated to triorganotin(IV) ions and 9 possesses a network structure where TMA acts as a tetradentate ligand coordinated to trimethyltin(IV) ions and water molecules in the hydrogen-bond system that links the neighboring layers into a 3D network. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005).