PICOSECOND TIME-RESOLVED FOURIER-TRANSFORM RAMAN-SPECTROSCOPY OF 9,10-DIPHENYLANTHRACENE IN THE EXCITED SINGLET-STATE

被引：5
|
作者：
JAS, GS
WAN, CZ
JOHNSON, CK
机构：
来源：
APPLIED SPECTROSCOPY | 1995年 / 49卷 / 05期
关键词：
TIME RESOLVED RAMAN; FT-RAMAN; STEP SCAN FT-RAMAN; EXCITED STATES;
D O I：
10.1366/0003702953963995
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Time-resolved Fourier transform Raman spectroscopy of the highly fluorescent chromophore 9,10-diphenylanthracene (DPA) in cyclohexane and ethanol is described. Raman spectra of the first excited singlet state of DPA were obtained with 100-ps resolution at several time delays between pump pulses at 355 nm and probe pulses at 1064 nm. The near-infrared excited-state Raman scattering is enhanced by resonance with an excited-state transition of DPA. The excited-state Raman bands decay in about 5-6 ns. Evidence for interaction of the solvent with the DPA excited state is observed in the cyclohexane C-H stretching bands.
引用
收藏
页码：645 / 649
页数：5
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