Abstract
Jet-cooled laser-induced fluorescence spectra of LaH molecules in the range 15500–18700cm−1 showed four new vibronic bands. Rotational analysis confirmed a 1Σ+ symmetry for the ground state, identified a 0+(3Σ−) electronic state at 15622.9(1)cm−1 via intercombination transition observed for the first time in LaH and two more excited electronic states with Ω=1 at 17397.9(1) and 17549.0(1)cm−1. Also observed the transition of type Ω′=0–Ω″=1 with band origin at 18508.8(1)cm−1. Comparison of the present data with earlier ab initio results indicated the overestimation of calculated energies and internuclear distances for the ground and excited electronic states.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
