A velocity map imaging study of the one and two photon dissociations of state-selected DCl+ cations
作者： Alexander D. Webb , N. Hendrik Nahler , Richard N. Dixon , Michael N. R. Ashfold
DOI: 10.1063/1.2390714
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摘要: DCl+(XΠ3∕22,v+″=0) cations have been prepared by 2+1 resonance enhanced multiphoton ionization, and their subsequent fragmentation following excitation at numerous wavelengths in the range of 240–350nm studied velocity map imaging resulting Cl+ products. This allows selective population AΣ+2 state levels with all vibrational (v+′) quantum numbers 0⩽v+′⩽15. Image analysis yields wavelength dependent branching ratios recoil anisotropies various D+Cl+ (PJ3, D1, S1) product channels. Levels 10⩽v+′⩽15 sufficient energy to predissociate, forming D+Cl+(PJ3) products perpendicular anisotropies—consistent AΣ+2←XΠ2 parent on a time scale that is fast compared rotational period. Branching into spin-orbit states Cl+(PJ3) found depend sensitively upon v+′ and, case v+′=13 level, vary precise choice e...
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