Intramolecular electron transfer from axial ligand to S2-excited Sb-tetraphenylporphyrin.
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.
Fujitsuka
Mamoru
M
The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan.
Cho
Dae Won
DW
Shiragami
Tsutomu
T
Yasuda
Masahide
M
Majima
Tetsuro
T