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Structural study of Mn(III)‐tetraarylporphyrin complexes by fast atom bombardment mass spectrometry
Author(s) -
Rubino F. M.,
Mascaro P.,
Banfi S.,
Quici S.
Publication year - 1991
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210260311
Subject(s) - fast atom bombardment , chemistry , mass spectrometry , fragmentation (computing) , dissociation (chemistry) , molecule , amide , mass spectrum , ether , ion , collision induced dissociation , polyatomic ion , crystallography , analytical chemistry (journal) , tandem mass spectrometry , organic chemistry , chromatography , computer science , operating system
Abstract A series of 27 Mn(III)‐tetraarylporphyrins bearing heterogeneous substituents on the phenyl rings at the meso positions were subjected to positive ion fast atom bombardment mass spectrometry The source spectra yielded the molecular ion and a few peaks confirmative of the chemical structure. Major processes were hydrogenolytic loss of the aryl rings or of their substituents. Molecules carrying a side‐chain underwent loss of the chain either as a solution process (amide linkage) or as a gas‐phase process (phenolic ether linkage). Collisionally activated dissociation mass‐analysed ion kinetic energy spectroscopy allowed discrimination between the two types of fragmentation processes and some other previously unreported gas‐phase reaction channels to be recognized.