Direct EPR observations of both oxidized and reduced porphyrin dimers in the lowest excited states: a novel analysis of a homobiradical with a strong antiferromagnetic interaction.
The oxidized and reduced forms of bis(tetra-tert-butyltetraazaporphinato)lutetium (III) (Lu(TAP)2) have been examined by time-resolved EPR (TREPR) spectroscopy, showing both the first EPR investigation of a homobiradical with a strong antiferromagnetic interaction and usefulness of TREPR for investigating excited-state properties of different oxidation states.
Furuya
Fumio
F
Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
Ishii
Kazuyuki
K
Kobayashi
Nagao
N