【摘 要】
：
用离子速度成像方法研究了乙烯酮分子在218 nm光解下的光解动力学,得到了光解产物CO的共振多光子电离谱,以及在不同振转态的角分布和平动能分布.得出如下结论:(1)CO(X1∑+)在
【机 构】
：
中国科学院大连化学物理研究所分子反应动力学国家重点实验室
【基金项目】
：
the Chinese Academy of Sciences;科技部资助项目;国家自然科学基金
论文部分内容阅读
用离子速度成像方法研究了乙烯酮分子在218 nm光解下的光解动力学,得到了光解产物CO的共振多光子电离谱,以及在不同振转态的角分布和平动能分布.得出如下结论:(1)CO(X1∑+)在v=0和v=1两个振动态都具有较热的转动激发,而且在v=0振动态的转动激发要比在v=1振动态的转动激发高;(2)乙烯酮分子在218nm光解的主要通道是产生CH2(a1A1)+CO(X1∑,+)产物通道,同时产生CH2(61B1)+CO(X1∑+)和CH2(X3B1)+CO(X1∑+)产物通道也可能存在.(3)光解产物CO在不同振转态的各向异性参数β都大于零,对于不同的振动态观察到的现象没有明显地不同.
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