Syntheses, Characterization and Crystal Structures of 1D and 2D Organotin Polymers Containing 3-Methyladipic Acid Ligand

Abstract

Four new organotin (IV) complexes of two types [(R 2 Sn) 2 (C 7 H 10 O 4 )(l 3 -O)] n (R = Me: 1; nBu: 2; and {(R 3 Sn) 2 [C 5 H 10 (COO) 2 ]} n (R = Me: 3; nBu: 4) have been synthesized by the reaction of 3-methyladipic acid with the corresponding R 3 SnCl (R = Me, nBu) under two different experimental conditions. All the complexes were characterized by elemental analysis, FT-IR, and NMR ( 1 H, 13 C, 119 Sn) spectroscopy. Except for 2, all of the complexes were also characterized by X-ray crystallography. The structural analyzes show that complex 1 is a 1D infinite chain polymer and forms a 2D organotin framework through intermolecular C-HÁÁÁO interactions and weak SnÁÁÁO interactions. Complexes 3 and 4 are 2D network polymers in which 3-methyladipic acid acts as a tetra dentate ligand coordinated to the trialkyltin (IV) ion.