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首页> 外文期刊>Chemical Physics Letters >Lifetime lengthening and the Renner-Teller effect in the HCF ((A)over-tilde(1)A '' - (X)over-tilde(1)A ') system
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Lifetime lengthening and the Renner-Teller effect in the HCF ((A)over-tilde(1)A '' - (X)over-tilde(1)A ') system

机译:HCF((A)波浪线(1)A''<-(X)波浪线(1)A')系统中的寿命延长和Renner-Teller效应

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摘要

We report new measurements of fluorescence excitation spectra and single rovibronic level fluorescence lifetimes for (0, nu(2)', 0) <-- (0, 0, 0) bands with nu(2)' = 0-6 in the HCF (A) over tilde (1)A(") <-- (X) over tilde (1)A' system. Due primarily to the Renner-Teller interaction, upper state levels with K-a greater than or equal to 1 display an obvious lengthening of lifetime with increasing energy which is strongly correlated with the presence of vibronic and rovibronic perturbations, and increases dramatically as the barrier to linearity is approached. This system provides a textbook example of the small molecule limit of radiationless transitions. (C) 2003 Published by Elsevier B.V. [References: 25]
机译:我们报告了HCF中nu(2)'= 0-6的(0,nu(2)',0)<-(0,0,0)谱带的荧光激发光谱和单旋电子水平荧光寿命的新测量值(A)超过波浪线(1)A(“)<-(X)超过波浪线(1)A'系统。主要是由于Renner-Teller相互作用,Ka大于或等于1的上态水平显示出明显的随能量增加而延长寿命,这与振动和旋转振动的存在密切相关,并随着接近线性障碍而急剧增加,该系统提供了无辐射跃迁的小分子极限的教科书示例(C)2003年出版通过Elsevier BV [参考:25]

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