✦ LIBER ✦

Electron impact mass spectra of some nickel(II) and palladium(II) complexes of diphenylphosphinoacetone and 3-diphenylphosphinobutan-2-one

✍ Scribed by P. Hadjieva; G. Petrov; E. M. Georgiev

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 303 KB
Volume: 26
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210260209

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✦ Synopsis

The electron impact mass spectral fragmentation of five newly synthesized Ni(I1) and Pd(I1) complexes of diphenylphosphinoacetone (HL), i.e. trans-[ NiCl,(HL), I and trans-I PdCI,(HL), 1 and their enolates cis-I NiL, 1 and cis-[ PdL, 1 and the bis-enolate of 3diphenylphosphinobutan-2-one (HLMe), trms-[ Ni(LMe), 1, is discussed. The proposed fragmentation mechanisms and the ion structures were confirmed by high-resolution data for three of the compounds and by Ni and Pd isotope abundances. The results obtained reveal that a mass spectral differentiation is useful in the identification of these types of complexes. Especially with phosphinoenolate bis-chelates molecular ion peaks are observed.

Formula C15H1502P C15H150P C13H120P Cl 2Hl OOP Cl Z H l O P Cl,H,P Cl *He

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