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Published on: March 24, 2018
Fine Substituent Effects in Sandwich Complexes: A Threshold Ionization Study of Monosubstituted Chromium Bisarene
Sergey Yu Ketkov1, Gennady V Markin2, Sheng Y Tzeng3
1G. A. Razuvaev Institute of Organometallic Chemistry, RAS, Tropinin St. 49, GSP-445, Nizhny Novgorod, 603950, Russian Federation. sketkov@iomc.ras.ru.
Abstract:
Mass-analyzed threshold ionization spectra of jet-cooled [(η(6) -PhMe)(η(6) -PhH)Cr] and [(η(6) -Ph2 )(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.
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