Synthesis, Spectroscopic Properties and Structural Characterization of Tri(o-chlorobenzyl)tin Ester of 4-Pyridinecarboxylic Acid

摘要

The title complex, tri(o-chlorobenzyl)tin ester of 4-pyridinecarboxylic acid, has been synthesized by the reaction of bis[tri(2-chlorobenzyl)tin] oxide with 4-pyridinyl carboxylic acid and characterized by elemental analysis, IR and ~1H NMR, and its crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to triclinic, space group P2_1 with a = 8.821(7), b = 18.888(15), c = 15.333(12) A, β= 92.390(12)°, Z = 4, V= 2552(3) A~3, D_c= 1.607 g/cm~3, μ = 1.340 mm~(-1), F(000) = 1232, R = 0.0408 and wR = 0.0962. In the molecular structure of the title complex, the tin atoms are five-coordinated into a trigonal bipyramidal geometry by coordinating to the intermolecular pyridine N atoms of carboxylate groups. The resulting structure is a one-dimensional linear polymer containing Sn-O (2.150(4) A) and Sn-N (2.522(4) A) bonds.