Photodissociation of O2 at 157 nm: Experimental observation of anisotropy mixing in the O2+hν→O(3P)+O(3P) channel

作者: Jim J. Lin , Dennis W. Hwang , Yuan T. Lee , Xueming Yang

DOI: 10.1063/1.476751

关键词:

摘要: In this work, photodissociation of O2 at 157 nm has been studied using the photofragmentation translational spectroscopic technique. Two product channels O2+hν→O(1D)+O(3P), O2+hν→O(3P)+O(3P) have observed. The relative yields and anisotropy parameters both are determined. Anisotropy mixing dissociation resulting from a perpendicular excitation parallel-type observed in channel O2+hν→O(3P)+O(3P). results can be used to look detailed dynamical processes through Schumann–Runge band.

参考文章(10)
Henry F. Schaefer, William H. Miller, Curve Crossing of theB3Σu− and 3Π u States of O2and Its Relation to Predissociation in the Schumann—Runge Bands The Journal of Chemical Physics. ,vol. 55, pp. 4107- 4113 ,(1971) , 10.1063/1.1676708
A. C. Allison, S. L. Guberman, A. Dalgarno, Photoabsorption into the ³Πustate of O2 Journal of Geophysical Research. ,vol. 87, pp. 923- 925 ,(1982) , 10.1029/JA087IA02P00923
Jim J. Lin, Dennis W. Hwang, Steven Harich, Yuan T. Lee, Xueming Yang, New low background crossed molecular beam apparatus: Low background detection of H2 Review of Scientific Instruments. ,vol. 69, pp. 1642- 1646 ,(1998) , 10.1063/1.1148821
George E. Busch, Kent R. Wilson, Triatomic Photofragment Spectra: I. Energy Partitioning in NO2 Photodissociation, Journal of Chemical Physics. ,vol. 56, pp. 3626- 3638 ,(1972) , 10.1063/1.1677740
Paul S. Julienne, Morris Krauss, Predissociation of the Schumann-Runge bands of O2 Journal of Molecular Spectroscopy. ,vol. 56, pp. 270- 308 ,(1975) , 10.1016/0022-2852(75)90241-6
S. S‐L. Chiu, A. S‐C. Cheung, M. Finch, M. J. Jamieson, K. Yoshino, A. Dalgarno, W. H. Parkinson, Predissociation of oxygen in the B 3Σ−u state The Journal of Chemical Physics. ,vol. 97, pp. 1787- 1792 ,(1992) , 10.1063/1.463165
A. C. Allison, S. L. Guberman, A. Dalgarno, A model of the Schumann-Runge continuum of O2 Journal of Geophysical Research. ,vol. 91, pp. 10193- 10198 ,(1986) , 10.1029/JA091IA09P10193
Eugenio Sanhueza, Julian Heicklen, The reaction of O(3P) with CCl2CH2 Journal of Photochemistry. ,vol. 4, pp. 1- 15 ,(1975) , 10.1016/0047-2670(75)80010-4
D C Cartwright, N A Fiamengo, W Williams, S Trajmar, Decomposition of the photoabsorption Schumann-Runge continuum in O2 Journal of Physics B. ,vol. 9, ,(1976) , 10.1088/0022-3700/9/14/003
Paul S. Julienne, coupling in the O2 predissociation Journal of Molecular Spectroscopy. ,vol. 63, pp. 60- 79 ,(1976) , 10.1016/0022-2852(67)90134-8