Magnetic circular dichroism of symmetry and spin forbidden transitions of high-spin metal ions

Vasily S. Oganesyan, Andrew J. Thomson

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A previously developed method to analyze magnetic circular dichroism (MCD) is extended to analyze the near infrared region of ligand-field (LF) spin-forbidden transitions of the type 6A14E, 4A2, 4B2 of pseudo-tetrahedral high-spin Fe(III), S=5/2, in the protein oxidized rubredoxin. It is demonstrated that for some specific state of a paramagnetic center and under appropriate experimental conditions, the MCD of spin or symmetry forbidden transitions becomes comparable in magnitude to those of allowed transitions.

Original languageEnglish
Pages (from-to)5003-5017
Number of pages15
JournalJournal of Chemical Physics
Issue number12
Early online date8 Sep 2000
Publication statusPublished - 22 Sep 2000

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