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Magnetic resonance‐Raman optical activity of ferrocytochrome c theory and experiment
Author(s) -
Barron L. D.,
Meehan C.,
Vrbancich J.
Publication year - 1982
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250120311
Subject(s) - raman optical activity , raman spectroscopy , antisymmetric relation , chemistry , excitation , resonance (particle physics) , symmetry (geometry) , tensor (intrinsic definition) , nuclear magnetic resonance , absorption (acoustics) , molecular physics , atomic physics , physics , optics , quantum mechanics , geometry , mathematics , pure mathematics , mathematical physics
The theory of magnetic resonance Raman optical activity in metal porphyrins is developed. Irreducible tensor methods are used to calculate the transition polarizabilities (involving both symmetric and antisymmetric contributions) which are formulated in terms of a vibronic development of the Raman transition tensors. The circular intensity difference for the vibrations of symmetry species A 1 , A 2 , B 1 and B 2 is explicitly evaluated for excitation within the 0–0 and 0–1 visible absorption bands. Polarized, depolarized and unpolarized magnetic resonance Raman optical activity spectra of ferrocytochrome c within the 0–0 and 0–1 bands are presented. Good qualitative agreement is found between theory and experiment.