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Novel approach to separation and identification of organometallic compounds in complex mixtures by means of particle beam liquid chromatography/mass spectrometry: the case of diphosphine‐substituted selenido iron and ruthenium clusters
Author(s) -
Careri M.,
Graiff C.,
Mangia A.,
Manini P.,
Predieri G.
Publication year - 1998
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(19980314)12:5<225::aid-rcm147>3.0.co;2-k
Subject(s) - chemistry , fragmentation (computing) , ruthenium , mass spectrometry , mass spectrum , analytical chemistry (journal) , ionization , chromatography , particle beam , ion , organic chemistry , catalysis , beam (structure) , physics , computer science , optics , operating system
The particle beam liquid chromatography/mass spectrometry (PB LC/MS) characterization of diphosphine‐substituted selenido iron and ruthenium clusters is reported. The clusters considered result from the reaction between the diphosphine diselenides (Ph 2 PSe) 2 R [R = CH 2 , dppmSe 2 ; R = CH 2 CH 2 , dppeSe 2 ; R = (C 5 H 4 ) 2 Fe, dppfcSe 2 ] and Fe 3 (CO) 12 and Ru 3 (CO) 12 . Complex reaction mixtures were separated under adsorption chromatographic conditions and characterized on‐line by means of the positive‐ion and negative‐ion chemical ionization mass spectra of the eluates. The PB LC/MS analysis of the crude reaction mixtures proved useful, avoiding sample manipulation and/or sample degradation; this is particularly important for those compounds sensitive to oxygen or light, or which are unstable in solution. The spectra obtained showed characteristic fragmentation patterns and detailed structural information. © 1998 John Wiley & Sons, Ltd.