Laser-induced fluorescence and dispersed fluorescence spectroscopy, isotopic studies, and lifetime measurements for rhodium monoxide

RhO molecules have been generated from laser-ablated rhodium atoms and 16O2 or 18O2 and studied spectroscopically. Thirty LIF band features in the 500–650 nm region have been examined. Dispersed fluorescence and excited state lifetime data have been recorded. Measurements on vibrational levels v=0 to 5 of the molecular ground state give ωe=807 cm−1 and ωexe=5 cm−1. Excited state vibrational parameters have been estimated. Evidence is found for low-lying electronic states at 3744, 5980 and 6477 cm−1.