The charge-transfer state of 4-dimethylamino-3,5-dimethylbenzonitrile studied in a free jet
1987; Elsevier BV; Volume: 141; Issue: 5 Linguagem: Inglês
10.1016/0009-2614(87)85057-1
ISSN1873-4448
AutoresTomohiro Kobayashi, Motoko Futakami, Okitsugu Kajimoto,
Tópico(s)Photochemistry and Electron Transfer Studies
ResumoThe formation of the charge-transfer (CT) state of 4-dimethylamino-3,5-dimethylbenzonitrile (TMABN) is studied in a supersonic free jet. In agreement with the observation by Rotkiewicz and Rubaszewska in the gas phase, the CT emission appears upon excitation of TMABN isolated in a free jet. The structureless LIF spectrum observed even in the supercooled compound suggests a significant change in geometry in the upper electronic states. From the excitation wavelength dependence, the emission was found to be composed of two kinds of fluorescence: one from the CT state and the other from a twisted higher excited S2 state.
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