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Binding of O 2 and CO to Metal Porphyrin Anions in the Gas Phase
Author(s) -
Karpuschkin Tatjana,
Kappes Manfred M.,
Hampe Oliver
Publication year - 2013
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.201303200
Subject(s) - porphyrin , carbon monoxide , chemistry , monoxide , metal , manganese , mass spectrometry , molecule , inorganic chemistry , photochemistry , organic chemistry , catalysis , chromatography
The binding energies of O 2 and CO to iron(II) and manganese(II) porphyrin anions has been determined in the gas phase. Low‐pressure ion–molecule equilibria have been measured in a cryogenically cooled trap of an FT‐ICR mass spectrometer, and binding energies of (40.8±1.3) kJ mol −1 and (66.3±2.6) kJ mol −1 have been obtained for oxygen and carbon monoxide, respectively, with a heme‐analogue Fe II porphyrin complex.