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H–D Exchange in some macrocyclic complexes of nickel(II) under electron impact
Author(s) -
Palii Sergiu P.,
Indrichan Konstantin M.,
Gerbeleu Nikolai V.,
Arion Vladinir B.,
Zagorevskii Dmitrii V.,
Nekrasov Yurii S.
Publication year - 1990
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.1210250306
Subject(s) - chemistry , nickel , ion , mass spectrum , electron ionization , hydrogen , carbon fibers , decomposition , crystallography , inorganic chemistry , organic chemistry , materials science , composite number , composite material , ionization
The electron impact mass spectra of coordination compounds of nickel(II) containing 14‐membered hexaaza macrocyclic ligands composed of S ‐substituted isothiosemicarbazide and β‐diketone units with cis and trans arrangement of SR groups were studied. The molecular ions exhibited the most in tense peaks in all cases. The loss of peripheral groups is a common feature of the decomposition of the molecular ions for the compounds studied. Exchange between the hydrogen atoms of the alkylthio groups and the hydrogen at γ‐carbon atoms of the β‐diketonate fragments was observed in the mass spectra of compounds with trans ‐SR groups. The molecular ions of the complexes with cis ‐SR groups selectively eliminated the radical R˙.