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Fine Substituent Effects in Sandwich Complexes: A Threshold Ionization Study of Monosubstituted Chromium Bisarene Compounds
Author(s) -
Ketkov Sergey Yu.,
Markin Gennady V.,
Tzeng Sheng Y.,
Tzeng Wen B.
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201505039
Subject(s) - substituent , chromium , ionization , chemistry , benzene , toluene , ionization energy , photoionization , mass spectrometry , analytical chemistry (journal) , medicinal chemistry , photochemistry , computational chemistry , organic chemistry , ion , chromatography
Mass‐analyzed threshold ionization spectra of jet‐cooled [(η 6 ‐PhMe)(η 6 ‐PhH)Cr] and [(η 6 ‐Ph 2 )(η 6 ‐PhH)Cr] reveal with unprecedented accuracy the effects of methyl and phenyl groups on the electronic structure of bis(η 6 ‐benzene)chromium. These “pure” substituent effects allow quantitative experimental determination of the ionization energy changes caused by the mutual substituent influence in bisarene systems. Two types of such influence have been revealed for the first time in bis(η 6 ‐toluene)chromium.