The X2Πi, A2Δi, and B2Σ+ Low-Lying States of NiCl: Laser-Induced Fluorescence and Fourier Transform Emission Experiments

✍ Scribed by Y. Krouti; A. Poclet; T. Hirao; B. Pinchemel; P.F. Bernath

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 117 KB
• Volume: 210
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.2001.8442

✦ Synopsis

Six new electronic transitions of NiCl, recorded by high-resolution Fourier transform spectroscopy, have been studied. The identification of the states involved in these transitions has been made possible by dispersing laser-induced fluorescence at low resolution. Comparison of the results obtained using these two experimental techniques allowed us to locate the [1.6] A 2 3/2 (v = 0) spin-orbit component at 1 646 cm -1 above the X 2 3/2 ground state. Two other low-lying states have also been identified: the first one, located 382 cm -1 above the ground state is a good candidate to be the X 2 1/2 component of the X 2 i state. A second state at 1 385 cm -1 in the energy level diagram could be a component of a quartet state of NiCl. In addition we have identified a = 3/2 state 21 608 cm -1 above the X 2 3/2 ground state. The [22.3] 2 3/2 spin-orbit component associated with already known [21.9] 2 5/2 sublevel has also been identified.