Laser spectroscopy of NiI: Ground and low-lying electronic states

Rotationally resolved near-infrared and visible spectroscopic studies of the ground and low-lying electronic states of NiI were performed using the technique of laser vaporization/reaction with free jet expansion and laser-induced fluorescence (LIF) spectroscopy. Two electronic transitions as well as isotopic molecules were analyzed. The electronic configurations that give rise to the X 2∏ 3/2 ground state for NiF, NiCl, and NiBr were determined.published_or_final_versio