Fluorescence excitation spectroscopy of the Ã2A1←X̃2B1 system of jet-cooled NH2 in the region 2900–4300 Å

✍ Scribed by Ju Xin; Haiyan Fan; Ionela Ionescu; Chris Annesley; Scott A. Reid

• Book ID: 104151761
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 193 KB
• Volume: 219
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1016/s0022-2852(03)00008-0

✦ Synopsis

The fluorescence excitation spectrum of the NH 2 Ã A 2 A 1 X X 2 B 1 system in the region 2900-4300 A A has been measured under jetcooled conditions using a pulsed discharge source. A total of fourteen bands involving the pure bending states (0; t 0 2 ; 0) were observed and analyzed, including 10 bands not previously measured to our knowledge. The spectra are largely free from rotational perturbations at the low N values accessed in this experiment, and the molecular constants were obtained from a least squares fit to the determined spin-rovibronic term values. The derived constants are in good agreement with theoretical predictions incorporating the effects of orbital angular momentum on the spin-rotational fine structure.