文献类型：期刊文献

英文题名：Nascent rotational distribution for LiH(v=0-3,J) states from collisions with H2(E=4300 and 4800cm-1)

作者：Shen, Xiaoyan[1];Wang, Shuying[2];Dai, Kang[2];Shen, Yifan[2]

机构：[1]East China Univ Sci & Tech, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Xinjiang Univ, Sch Phys, Urumqi 830046, Peoples R China

年份：2017

卷号：173

起止页码：516

外文期刊名：SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

收录：;EI(收录号：20164302927161);WOS:【SCI-EXPANDED(收录号:WOS:000390502900071)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 11164028 and 11364042).

语种：英文

外文关键词：Collisional energy transfer; Stimulated Raman pumping; Transient fluorescence measurement; Rotational and translational energy profiles; H-2(E); LiH

摘要：Rotationally state selective excitation of H-2(v = 1, J = 1 or 3) was achieved by stimulated Raman pumping. The full state-resolved distribution of scattered LiH(v = 0-3, J = 0 similar to 13)molecules from collisions with excited H-2(E = 4300 and 4800 cm(-1)) is reported. Nascent rotational and translational energy profiles for scattered LiH(v = 0 similar to 3) molecules with J = 0 similar to 13 were measured using high-resolution transient laser induced fluorescence(LIF). The product translational energy for individual J-states increases by 120% for a 13% increase in donor energy. The scattered LiH(v = 0, J = 0 similar to 13) molecules have a biexponential rotational distribution. Fitting the data with a two-component exponential model yields a low-energy distribution and a high-energy distribution. The rotational distribution is sensitive to donor energy. Rotational distributions of scatted LiH(v = 1-3) molecules were also measured. The distribution yielded rotational temperatures at 690 K for LiH/H-2(E = 4300 cm(-1)) and 730 K for LiH/H-2(E = 4800 cm(-1)), respectively. The rate constants for appearance LiH(v = 0-3,J) were determined. (C) 2016 Elsevier B.V. All rights reserved.