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Structure of the Observable Histidine Radical Cation in the Gas Phase: A Captodative α‐Radical Ion
Author(s) -
Steill Jeffrey,
Zhao Junfang,
Siu ChiKit,
Ke Yuyong,
Verkerk Udo H.,
Oomens Jos,
Dunbar Robert C.,
Hopkinson Alan C.,
Siu K. W. Michael
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200804101
Subject(s) - infrared multiphoton dissociation , dissociation (chemistry) , observable , imidazole , chemistry , radical ion , protonation , ion , computational chemistry , photochemistry , stereochemistry , organic chemistry , physics , quantum mechanics
The observable histidine radical cation generated by collision‐induced dissociation of the [Cu II (2,2′:6′,2′′‐terpyridine)(His)] .2+ complex carries the positive charge on the protonated imidazole ring and the radical formally on the α carbon. This structure has been confirmed by infrared multiple photon dissociation (IRMPD) spectroscopy and density functional calculations.