用laser诱导荧光和分散荧光技术在450 - 560 nm范围内测定一硫化镍
Spectroscopy of nickel monosulfide in 450 - 560 nm by laser-induced fluorescence and dispersed fluorescence techniques
摘要：
在450 ~ 560 nm波长范围内记录并分析了NiS的激光诱导荧光激发光谱。共观察到35个电子振动跃迁带，其中29个为首次报道。旋转分析表明，所有观察到的谱带都可以归因于^58 NiS（和^60 NiS）的[Ω = 0] - X^3 σ ^-跃迁。25个谱带被建议分成四个振动级数。此外，通过色散荧光测量，我们直接获得了^58 NiS的基态振动能级（v”= 6）的能量以及基态的振动频率和非谐常数。
英文摘要：
Laser-induced fluorescence excitation spectrum of NiS in the wavelength range of 450 - 560 nm has been recorded and analyzed. Thirty-five vibronic transition bands have been observed, 29 of which are reported for the first time. Rotational analyses indicated that all the observed bands can be attributable to the [Omega = 0] - X^3 Sigma^- transitions of ^58 NiS (and ^60 NiS). Twenty-five bands have been suggested to be grouped into four vibrational progressions. Furthermore, through dispersed fluorescence measurements we directly obtained the energies for the ground-state vibrational levels up to v" = 6 as well as the vibrational frequency and the anharmonicity constant for the ground state of ^58 NiS.
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