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Synthesis and characterization of N , N ‐diethyldithiocarbamate complexes of 2‐alkoxycarbonylethyltin trichloride
Author(s) -
Tian Laijin,
Yu Qingsen,
Shang Zhicai,
Sun Yuxi,
Zhang Liping
Publication year - 2005
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.871
Subject(s) - chemistry , dithiocarbamate , tin , denticity , octahedron , chelation , ring (chemistry) , intramolecular force , crystallography , crystal structure , stereochemistry , inorganic chemistry , organic chemistry
N , N ‐Diethyldithiocarbamate complexes of 2‐alkoxycarbonylethyltin trichloride, ROCOCH 2 CH 2 SnCl 3− x [S 2 CNEt 2 ] x (R = CH 3 ( a ); CH 3 CH 2 ( b ); CH 2 CHCH 2 ( c ); CH 3 CH 2 CH 2 ( d ); CH 3 CH 2 CH 2 CH 2 ( e ); x = 1 ( 1 ), 2 ( 2 )) were synthesized and characterized by means of elemental analysis, IR, and NMR ( 1 H, 13 C and 119 Sn) spectra. The crystal structure of 1b (i.e. R = CH 3 CH 2 , x = 1) was determined and shows that the tin atom adopts a distorted octahedral geometry with both a five‐membered chelate ring, formed via carbonyl coordination to tin, and a four‐membered chelate ring, formed by the bidentate dithiocarbamate. The spectral data and ab initio calculations indicate that intramolecular carbonyl‐oxygen to tin coordination in 1a–1e persists, but not in 2a–2e , owing to the preference of the dithiocarbamate ligands to chelate the tin centre. Copyright © 2005 John Wiley & Sons, Ltd.