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Mass spectrometry of transition metal π‐complexes. XV —The effect of substituents on the fragmentation of benchrotrenyls under electron impact
Author(s) -
Nekrasov Yu. S.,
Vasyukova N. I.
Publication year - 1979
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.1210140805
Subject(s) - substituent , decarbonylation , chemistry , mass spectrum , fragmentation (computing) , transition metal , electron ionization , ion , metal , medicinal chemistry , mass spectrometry , crystallography , stereochemistry , analytical chemistry (journal) , organic chemistry , chromatography , ionization , computer science , operating system , catalysis
Mass spectra of substituted benchrotrenyls RC 6 H 5 Cr(CO) 3 where RH, F, CI, I, CH 3 , OCH 3 , COOCH 3 , C 2 H 5 , N(CH 3 ) 2 , NH 2 , C 6 H 5 , C(CH 3 ) 3 , p ‐C 6 H 4 NH 2 , CH 2 C 6 H 5 , CH 2 CH 2 C 6 H 5 ), 1,3,5‐(CH 3 ) 3 C 6 H 3 Cr(CO) 3 and 1,2,3,5‐(CH 3 ) 4 C 6 H 2 Cr(CO) 3 have been studied. It has been found that for monosubstituted benchrotrenyls there is a linear dependence of the parameter log [Cr] + /[RC 6 H 5 Cr] + ) on the number of degrees of freedom of the [RC 6 H 5 Cr] + ion. Decarbonylation of the molecular ions is not affected by the nature of the substituent R. The results are interpreted in terms of the quasi‐equilibrium theory of mass spectra.