Intramolecular electron transfer from axial ligand to S2-excited Sb-tetraphenylporphyrin

Mamoru Fujitsuka; Dae Won Cho; Tsutomu Shiragami; Masahide Yasuda; Tetsuro Majima

doi:10.1021/jp062023r

Intramolecular electron transfer from axial ligand to S2-excited Sb-tetraphenylporphyrin

J Phys Chem B. 2006 May 18;110(19):9368-70. doi: 10.1021/jp062023r.

Authors

Mamoru Fujitsuka¹, Dae Won Cho, Tsutomu Shiragami, Masahide Yasuda, Tetsuro Majima

Affiliation

¹ The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan.

PMID: 16686477
DOI: 10.1021/jp062023r

Abstract

The S(2) state properties of Sb-tetraphenylporphyrin (SbTPP) derivatives were investigated using subpicosecond spectroscopic methods. The S(2) fluorescence of various SbTPP derivatives was observed for the first time. It was revealed that the S(2) fluorescence lifetime changed depending on the donor-ability of the ligand because of the contribution of the charge separation to the S(2) excited SbTPP, which was confirmed by transient absorption spectroscopy.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Antimony / chemistry*
Electrons
Ligands
Molecular Structure
Porphyrins / chemistry*
Spectrometry, Fluorescence

Substances

Ligands
Porphyrins
tetraphenylporphyrin
Antimony