標題: Fluorescence lifetime and nonradiative relaxation dynamics of DCM in nonpolar solvent
作者: Chang, CW
Kao, YT
Diau, EWG
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 4-Jun-2003
摘要: The nonradiative dynamics of DCM in hexane have been investigated using femtosecond fluorescence up conversion technique at three excitation wavelengths (400, 445 and 480 nm). The S, lifetime was observed to be 9.8 +/- 0.5 ps, which is independent of the excitation and the fluorescence wavelengths. The observed S, lifetimes of DCJT and DCJTB are slower than those of DCM and DCMB by one order of magnitude, indicating the significance of the twisting motion of the amino group affecting the S, nonradiative dynamics. TDDFT calculations suggest that an intersystem crossing is responsible for the observed S, dynamics of DCM in nonpolar solvent. (C) 2003 Elsevier Science B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/S0009-2614(03)00645-6
http://hdl.handle.net/11536/27795
ISSN: 0009-2614
DOI: 10.1016/S0009-2614(03)00645-6
期刊: CHEMICAL PHYSICS LETTERS
Volume: 374
Issue: 1-2
起始頁: 110
結束頁: 118
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