Electronic and vibrational spectroscopic studies of jet-cooled 5-cyanoindole and its water clusters, 5CI-(H2O)n, (n=0-2)
Electronic and vibrational spectroscopic studies of jet-cooled 5-cyanoindole and its water clusters, 5CI-(H2O)n, (n=0-2)
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DOI：
10.1016/j.cplett.2016.06.008
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发表时间：
2016-08-01
影响因子：
2.8
通讯作者：
Choi, Myong Yong
中科院分区：
文献类型：
--
作者：
Min, Ahreum;Moon, Cheol Joo;Choi, Myong Yong
测量了5-氰吲哚（5CI）及其水团簇5CI-(H2O)(n) （n =1和2）的质量选择共振双光子电离（R2PI）和紫外-紫外空穴燃烧以及红外浸出光谱。虽然5CI-(H2O)（1-2）的结构与3CI-(H2O)（1-2）相似，但由于5CI-(H2O)（1-2）的L-a-L-b态能量较3CI-(H2O)（1-2）低，结合能较高，两种体系的光碎裂行为有很大不同。特别是对于50-(I-120)2簇，5CI-(H2O)(2)的激发态寿命缩短导致5CI-(H2O)(2)的R2PI谱背景较宽。(C) 2016 Elsevier B.V.版权所有
Mass-selected resonant two-photon ionization (R2PI) and UV-UV hole-burning, and infrared-dip spectra of 5-cyanoindole (5CI) and its water clusters, 5CI-(H2O)(n) (n =1 and 2) were measured. Although, the structures of 5CI-(H2O)(1-2) are similar to those of 3CI-(H2O)1-2, the photofragmentation behaviors of the two systems are quite different due to the L-a-L-b state energy lowering and higher binding energies of 5CI-(H2O)(1-2) compared to those of 3CI-(H2O)(1-2). Especially for the case of 50-(I-120)2 cluster, shortening excited-state lifetime of 5CI-(H2O)(2) causes the broad background in the R2PI spectrum of 5CI-(H2O)(2). (C) 2016 Elsevier B.V. All rights reserved.