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Spectroscopic Characterization and Reactivity of Triplet and Quintet Iron(IV) Oxo Complexes in the Gas Phase
Author(s) -
Andris Erik,
Jašík Juraj,
Gómez Laura,
Costas Miquel,
Roithová Jana
Publication year - 2016
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.201511374
Subject(s) - chemistry , photodissociation , reactivity (psychology) , counterion , photochemistry , ligand (biochemistry) , infrared , phase (matter) , infrared spectroscopy , hydrogen , crystallography , ion , organic chemistry , physics , medicine , biochemistry , alternative medicine , receptor , pathology , optics
Closely structurally related triplet and quintet iron(IV) oxo complexes with a tetradentate aminopyridine ligand were generated in the gas phase, spectroscopically characterized, and their reactivities in hydrogen‐transfer and oxygen‐transfer reactions were compared. The spin states were unambiguously assigned based on helium tagging infrared photodissociation (IRPD) spectra of the mass‐selected iron complexes. It is shown that the stretching vibrations of the nitrate counterion can be used as a spectral marker of the central iron spin state.