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Analysis of the LIF Spectroscopy of Nickel Hydride in 19000-21400 cm-1
Jing-ru Guo, Ting-ting Wang, Zhao-xia Zhang, Cong-xiang Chen, Yang Chen
Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
Abstract:
The laser-induced fluorescence (LIF) excitation spectrum of NiH was recorded in the spectral region from 15000 cm-1 to 21400 cm-1, with the NiH molecules produced by the reaction of sputtered nickel atoms with methanol under supersonic jet conditions. The 19000-21400 cm-1 portion of the spectrum of NiH is reported for the first time. Twenty-four bands were observed and classified into seven electronic transitions. Every band was rotationally analyzed. Higher vibrational levels of many excited states, A, B, D, E, F, and G,were observed and the complete set of spectroscopic parameters, vibrational frequency, unharmonic constant, rotational constant, and equilibrium length of these states were obtained. Some bands were reassigned
Key words:  NiH, Laser-induced fluorescence (LIF), Spectrum
FundProject:国家自然科学基金
Analysis of the LIF Spectroscopy of Nickel Hydride in 19000-21400 cm-1
郭静茹, 王婷婷, 张朝霞, 陈从香, 陈旸*
中国科学技术大学合肥微尺度物质科学国家实验室,化学物理系,合肥230026
摘要:
采用放电溅射出的镍原子与甲醇气体在超声射流条件下产生NiH分子,获得了NiH分子在15000~21400 cm-1的激光诱导荧光激发谱.首次报道了NiH分子在19000~21400 cm-1的光谱.将观测到的24个谱带归属到7个不同的电子跃迁,并对每个谱带进行了转动分析.观测到了A、B、D、E、F和G态的高振动能级,得到了这些电子态的振动频率、非谐性常数、转动常数和平衡键长等较完整的光谱常数.并重新标识了一些谱带.
关键词:  NiH,激光诱导荧光,光谱
DOI:10.1088/1674-0068/21/04/308-313
分类号: