Physics – Chemical Physics
Scientific paper
2010-01-13
Chem. Phys. Lett. 493, 245 (2010)
Physics
Chemical Physics
26 pages, 5 figures, 4 tables; accepted to CPL
Scientific paper
10.1016/j.cplett.2010.05.073
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.
Chen Yang
Gao Jianqiang
Wang Li
Zhang Qun
Zhen Junfeng
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