Photofragmentation of cluster ions: the visible photoabsorption spectrum of Ar2N
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Authors: | T Nagata T Kondow |
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Institution: | 1. Department of Chemistry, Faculty of Science, The University of Tokyo, 113, Bunkyo-ku, Tokyo, Japan
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Abstract: | The absolute cross section for photodissociation of Ar2N 2 + was measured as a function of wavelength in the 470–550 nm range. A structureless broad band was observed; the cross section has a maximum of ~ 210 × 10?18 cm2 at ~ 500 nm. The measurement of the photofragment time-of-flight spectrum shows that(1) N 2 + , Ar+ and Ar 2 + are produced in the photodissociation of Ar2N 2 + in the wavelength range studied, and that(2) the observed visible absorption band is ascribable to a parallel-type transition of Ar2N 2 + , which possibly retains a linear geometry. |
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