Evidence for S-1/S-2 electronic state mixing in the S-1 <- S-0 fluorescence excitation spectrum of 1-naphthol

被引:16
作者
Humphrey, SJ
Pratt, DW
机构
[1] Department of Chemistry, University of Pittsburgh, Pittsburgh
关键词
D O I
10.1016/0009-2614(96)00538-6
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
Rotationally resolved fluorescence excitation spectra of two vibronic bands at Delta E = 410.5 and 414.9 cm(-1) in the S-1 <-- S-0 electronic transition of trans-1-naphthol have been recorded and analyzed. The analysis reveals that the in-plane transition dipole moment of the 410 cm(-1) band makes an angle of -36 degrees with the a inertial axis, the same as the origin band, whereas the corresponding angle of the 414 cm(-1) band is +55 degrees. Additionally, the spectrum of the 414 cm(-1) band is perturbed. These effects are attributed to a coupling of the 414 cm(-1) vibrational level of the S-1 electronic state to the S-2 electronic state which may influence the proton transfer behavior of 1-naphthol.
引用
收藏
页码:169 / 174
页数:6
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