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Laser-induced Fluorescence Spectroscopy of NiS: Identification of a Low-lying Electronic State
Cheng-bing Qin, Jian-zheng Zang, De-ping Zhang, Qun Zhang*, Yang Chen*
Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
Abstract:
Laser-induced fluorescence excitation spectra of jet-cooled NiS molecules were recorded in the energy range of 12200-13550 cm-1. Four vibronic bands with rotational structure have been observed and assigned to the [12.4]30- -X30- transition progression. The relevant rotational constants, significant isotopic shifts, and (equilibrium) molecular parameters have been determined. In addition, the lifetimes of the observed bands have also been measured.
Key words:  NiS, Laser-induced fluorescence, Isotopic shift
FundProject:
硫化镍激光诱导荧光光谱:一个新的低激发态
秦成兵, 臧建正, 张德萍, 张群*, 陈旸*
中国科学技术大学合肥微尺度物质科学国家实验室(筹), 化学物理系,合肥230026
摘要:
采用激光诱导荧光技术在12200~13550 cm-1能量范围内研究了超声射流冷却下的硫化镍光谱. 获得了4个具有转动结构的振转带,并被归属为基态至低激发态[12.4]30- 的跃迁. 通过转动分析,确定了该低激发态的转动常数、同位素位移以及分子(平衡)常数. 此外,还测量了这些振转带的寿命.
关键词:  NiS,激光诱导荧光,同位素效应
DOI:10.1063/1674-0068/26/02/140-144
分类号: