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Photo-induced Intra-complex Reactions in Ca+-Pyridine
Dong-sheng Wang1,2, Ke-li Han2, Shi-he Yang1
1.Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China;2.State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, China
Abstract:
Photodissociation spectra of Ca+-pyridine complex was obtained by reflectron time of flight spectrum (RTOF). Two channels were found from difference photodissociation spectra, one was non-reactive Ca+ cation separation channel, the other one was active channel for product Ca+NH2. Product Ca+ was dominant in the whole region studied and the only product in 530-590 nm region, reactive product Ca+NH2 shared a little present in whole products. Action spectrum as a function of photolysis laser wavelength shows appearance peaks relevant to transitions of complex. Branching ratio supports the information of photodissociation too.
Key words:  Complex, Photodissociation, Action spectrum
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Ca+-Pyridine络合物的光解反应
王东升1, 韩克利1, 杨士和2
1.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,大连,116023;2.香港科技大学化学系,香港
摘要:
使用反射式飞行时间质谱仪,得到Ca+-pyridine络合物在412~690 nm的光解谱.从谱图可见,反应有两个通道,一个是Ca+与pyridine分子解离开的非反应淬灭过程,这个通道在所有波段都有,且占优势;生成产物Ca+NH2的通道不仅所占比例小,且在530~590 nm波段关闭.作为激光波长函数的Action spectrum显示出明显的峰,对应于络合物的跃迁.反应的分支比也支持了光解谱图的结论.
关键词:  络合物  光解  行为光谱
DOI:10.1360/cjcp2006.19(2).123.3
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