Synthesis and characterization of ionic organotin compounds [R2SnCl2(2-quin)]-(HNEt3)+ and crystal structures of [(2,4-Cl2-C6H3CH2)2SnCl2(2-quin)]-(HNEt3)+

Eight ionic organotin compounds [R2SnCl2(2-quin)](-)(HNEt3)(+) have been synthesized by reactions of 2-quinH with R2SnCl2 (R = PhCH2 1, 2-Cl-C6H4CH2 2, 4-Cl-C6H4CH2 3, 2-F-C6H4CH2 4, 4-F-C6H4CH2 5, 4-CN-C6H4CH2 6, Ph 7, 2,4-Cl-2-C6H3CH2 8) in the presence of organic base NEt3, and their structures have been characterized by elemental analysis, IR and multinuclear NMR (H-1 C-13, Sn-119) spectroscopies. The structure of [(2,4-Cl-2-C6H3CH2)(2)SnCl2(2-quin)](-)(NEt3)(+) (8) has been determined by X-ray diffraction study. Studies show that compound 8 has a monomeric structure with the central tin atom six-coordinate in a distorted octahedral configuration and the nitrogen atoms of the 2-quin ligands are coordinating to the tin atom in all the eight compounds. (C) 2004 Elsevier B.V. All rights reserved.