文献类型：期刊文献

英文题名：Resonant energy transfer between highly vibrationally excited RbH(RbD) and H2(D2)

作者：Liu, Jing[1,3];Shen, Xiaoyan[2];Shen, Yifan[3];Dai, Kang[3]

机构：[1]Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Peoples R China;[2]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]Xinjiang Univ, Dept Phys, Urumqi 830046, Peoples R China

年份：2013

卷号：425

起止页码：62

外文期刊名：CHEMICAL PHYSICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000327443700007)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 10964011 and 11164028).

语种：英文

外文关键词：Energy transfer; Overtone pumping; Multiquantum relaxation; Highly vibrationally excited states; RbH(RbD); H-2(D-2)

摘要：An experimental study of vibrational relaxation and V-V and V-R energy transfer in RbH-H-2 collisions and their isotopic variants has been performed. In RbH (v '' = 17, 18, 21) + H-2, single quantum relaxation accounts for only about 30% of the total relaxation out of v '' states, and multiquantum relaxation makes significant contribution. For RbH (v '' = 18), Delta v = 2 relaxation is about twice as large as Delta v = 1. The significant fraction (24%) of the initial population for RbH (v '' = 21) prepared by overtone pumping, relaxes to much lower vibrational levels (Delta v = -8). The time scales is much shorter than the known collisional life-times of the intervening vibrational levels and thus a sequential single- quantum relaxation mechanism can be explicitly ruled out. V-V energy transfer is suitable explanation. Energy transfer between RbD ( X-1 Sigma(+)v '' = 21-30) and D-2 has been also investigated. V-R and V-V resonance behavior has been also confirmed. (C) 2013 Elsevier B.V. All rights reserved.