Photodissociation of iodocyclohexane at 266 and 277 nm: Energy partitioning and curve crossing analysis
Photodissociation of iodocyclohexane at 266 and 277 nm: Energy partitioning and curve crossing analysis
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碘环己烷在 266 和 277 nm 处的光解:能量分配和曲线交叉分析
DOI:
10.1016/j.optcom.2009.02.050
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发表时间:
2009-06
影响因子:
2.4
通讯作者:
张冰
中科院分区:
文献类型:
--
作者:
张冰
The photodissociation dynamics of iodocyclohexane (C6H11I) at 266 and 277nm has been investigated by ion velocity imaging technique. The velocity distributions, angular distributions and relative quantum yields are obtained for I (2P3/2) (denoted I) and I (2P1/2) (denoted I*) fragments. The energy partitioning shows that about 70% of the available energy goes into the internal excitation of the photofragments for both dissociation channels. From the angular distributions, we found the value of the anisotropy parameter β for I* at the corresponding excitation wavelength was less than that for I. Based on the measured angular distributions and relative quantum yields, the relative fractions of each excited state to the products are determined. The curve crossing probabilities between the3Q0and1Q1states are determined 0.503 at 266nm and 0.443 at 277nm.
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DOI:
10.1016/0301-0104(91)80119-3
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期刊:
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DOI:
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影响因子:
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