Reactions of alkynes with bis(triphenylphosphine)platinum-ethylene: A 31P-{1H} NMR study
作者:Gregory Butler、Colin Eaborn、Alan Pidcock
DOI:10.1016/s0022-328x(00)80899-2
日期:1981.5
Catalyse homogene: Synthese des benchrotrenylacetylenes catalysee par le palladium
作者:Didier Villemin、Endo Schigeko
DOI:10.1016/0022-328x(85)80256-4
日期:1985.9
Metal-side chain interaction in tricarbonylchromium complexes of phenylacetylenes studied by 13C NMR and IR spectroscopy
作者:Joanna Szewczyk、Adam Gryff-Keller
DOI:10.1016/0022-328x(92)85005-h
日期:1992.2
C-13 NMR spectra of several eta-6-arenetricarbonylchromium complexes of phenylacetylene and phenyltrimethylsilylacetylene have been interpreted. The complexing chemical shifts (CCS) observed for alpha and beta acetylenic carbons suggest the existence of a direct interaction between the metal atom and pi-electron system of the ethynyl substituent. The overall complexing effect is of the electron-withdrawing type which was confirmed by delta(Si-29), 2J(CH) and IR data. Some observations concerning synthesis of the investigated complexes have been also reported.