Results 211 to 220 of about 44,713 (249)

Photodissociation dynamics of pyridine [PDF]

The Journal of Chemical Physics, 2005
Photodissociation of pyridine, 2,6-d2-pyridine, and d5-pyridine at 193 and 248nm was investigated separately using multimass ion imaging techniques. Six dissociation channels were observed at 193nm, including C5NH5→C5NH4+H (10%) and five ring opening dissociation channels, C5NH5→C4H4+HCN, C5NH5→C3H3+C2NH2, C5NH5→C2H4+C3NH, C5NH5→C4NH2+CH3 (14%), and ...
Yuri A. Dyakov, Chien-Ming Tseng, Ming-Fu Lin, Yuan T. Lee, Yuan T. Lee, Sheng Hsien Lin, Sheng Hsien Lin, Alexander M. Mebel, Alexander M. Mebel, Chi-Kung Ni, Chi-Kung Ni   +10 more
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Photodissociation of uracil

Physical Chemistry Chemical Physics, 2007
We investigate the photochemistry and photodissociation dynamics of uracil by two-colour photofragment Doppler spectroscopy and by two-colour slice imaging at excitation wavelengths between 268 and 235 nm. We observe the loss of a hydrogen atom upon excitation into the pipi* state.
Christof Schon, Ingo Fischer, Michael Schneider, Theofanis N. Kitsopoulos, Luis Rubio-Lago   +4 more
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Photodissociation of thymine

Physical Chemistry Chemical Physics, 2006
We discuss the photochemistry and photodissociation dynamics of thymine as revealed by two-colour photofragment Doppler spectroscopy and by one-colour slice imaging. Thymine is optically excited into the pipi* state, known to deactivate quickly.
Michael Schneider, Ingo Fischer, Luis R. Lago, F. Johannes Buback, R. Maksimenka, Theofanis N. Kitsopoulos   +5 more
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Photodissociation Dynamics of Fluorobenzene

Journal of the American Chemical Society, 2003
Photodissociation of both fluorobenzene and d(5)-fluorobenzene at 193 nm under collision-free conditions has been studied in separate experiments using multimass ion imaging techniques. HF and DF eliminations were found to be the major dissociation channels.
Huang, C.L., Jiang, J.C., Mebel, A.M., Lee, Y.T., Ni, C.K.   +4 more
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Photodissociation of bromochlorobenzenes

Journal of Photochemistry and Photobiology A: Chemistry, 2008
The photodissociation kinetics of 2-, 3- and 4-bromochlorobenzene (BrClPh) and bromo-3,5-dichlorobenzene (Br-diClPh) have been studied in a molecular beam following excitation at 270 nm using femtosecond pump-probe spectroscopy. The kinetics and the dissociation dynamics in the BrClPhs were found to resemble the BrFPhs much more than the BrBrPhs. In 2-
Daniel Karlsson, Jan Davidsson
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Photodissociation Dynamics of Phenol [PDF]

The Journal of Physical Chemistry A, 2007
The photodissociation of phenol at 193 and 248 nm was studied using multimass ion-imaging techniques and step-scan time-resolved Fourier-transform spectroscopy. The major dissociation channels at 193 nm include cleavage of the OH bond, elimination of CO, and elimination of H(2)O. Only the former two channels are observed at 248 nm.
Yuan-Pern Lee, Chien-Ming Tseng, Suet Yi Liu, Z. F. Xu, Ming-Chang Lin, Chi-Kung Ni, Yuan T. Lee, Ming Fu Lin   +7 more
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The photodissociation of H2S: A study of indirect photodissociation

Chemical Physics Letters, 1984
Abstract We have performed calculations for the photodissociation of H2S using surfaces constructed to test a model proposed by van Veen et al., in which the dissociation occurs via predissociated levels of the bound 1B1 excited state. Total Franck-Condon factors for the photodissociation and partial Franck-Condon factors for the product vibrational ...
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