TIME-RESOLVED RESONANCE RAMAN-SPECTRA OF FREE-BASE OCTAETHYLPORPHYRIN IN THE S1 AND T1 STATES

被引：31

作者：

SATO, S ^{[1
]}

ASANOSOMEDA, M ^{[1
]}

KITAGAWA, T ^{[1
]}

机构：

[1] OKAZAKI NATL RES INST,INST MOLEC SCI,MYODAIJI,OKAZAKI 444,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 189卷 / 4-5期

关键词：

D O I：

10.1016/0009-2614(92)85229-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pump/probe time-resolved resonance Raman experiments were carried out for free-base octaethylporphyrin in benzene at room temperature by using two Nd:YAG lasers, and the vibrational spectra of its lowest excited singlet and triplet states were observed. The spectrum of the S1 state of OEPH2 pumped by the 532 nm pulse closely resembled that obtained by pumping it to the S2 state, confirming the fast relaxation from S2 to S1. The nu(4) band was shifted down by 23 cm-1 in S1 compared to the S0 state, but its location in the T1 state could not be determined. The highest-frequency skeletal stretching mode was also shifted down by 15 cm-1 upon excitation to S1, but it shifted up by 5 cm-1 upon intersystem crossing to the T1 state.

引用

页码：443 / 447

页数：5

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