Modulations of exchange coupling in oxoferrylporphyrin cation radical complexes detected by Mössbauer and EPR measurements

E. Bill*, X. Q. Ding, E. L. Bominaar, Ch Butzlaff, A. X. Trautwein, D. Mandon, R. Weiss, A. Gold

*Corresponding author for this work

Abstract

Oxoferrylporphyrin cation radical complexes were generated using the prophyrin dianions: tetrakis 2,6-dichlorophenyl (TDCPP) and tetrakis 2,4,6-trimethoxyphenyl (TTMPP). Spin coupling between ferryl iron (S=1) and porphyrin radical S′=1/2), ligand field interaction and hyperfine parameters of iron were studied by Mössbauer and EPR measurements and corresponding spin Hamiltonian analyses. Samples of [FeIV=0 TDCPP], which had to be prepared in CH2Cl2, were "vacuum dried" in order to obtain Mössbauer spectra.

Original languageEnglish
JournalHyperfine Interactions
Volume71
Issue number1-4
Pages (from-to)1299-1302
Number of pages4
ISSN0304-3843
DOIs
Publication statusPublished - 01.04.1992

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