Synthesis and dynamic nuclear magnetic resonance studies of the heterocyclic diphosphacyclopolysilanes, (PhP)2(SiMe2)n. Crystal and molecular structure of (PhP)2(SiMe2)3
作者:Thomas H. Newman、Joseph C. Calabrese、Richard T. Oakley、David A. Stanislawski、Robert West
DOI:10.1016/s0022-328x(00)86824-2
日期:1982.2
The heterocyclic diphosphasilanes (PhP)2(SiMe2)n(n - 2, 3, 4) were synthesized by the reactions of 1, 2-dilithium-1, 2-diphenyldiphosphide with α, ω-dichloropermethylpolysilanes Cl(SiMe2)nCl (n - 2, 3, 4). Stereochemical fluxionality in these compounds was examined by dynamic nuclearmagneticresonance. The1H, 13C, 31P and29Si NMR spectra are reported and discussed in terms of a phosphorus inversion