Di-n-butyltin Methyl-and Phenylphosphonates

F Ribot, C Sanchez, M Biesemans, FAG Mercier…

Index: Ribot, Francois; Sanchez, Clement; Biesemans, Monique; Mercier, Frederic A. G.; Martins, Jose C.; Gielen, Marcel; Willem, Rudolph Organometallics, 2001 , vol. 20, # 12 p. 2593 - 2603

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Citation Number: 35

Abstract

The reaction of [Bu2Sn (OPr)] 2O with RPO3H2 (R= Me, Ph), in Sn/P molar ratios of 1: 1 or 1: 2, yields di-n-butyltin phosphonates or hydrogenophosphonates. The molecular structure detemined by X-ray diffraction for [Bu2Sn (HO3PMe) 2] 2, as well as multinuclear solid state and solution NMR studies, including 31P-119Sn HMQC experiments, systematically reveals a trigonal bipyramidal configuration at tin, with a very strong stereochemical fluxionality for ...