Chemiluminescent NiO* emissions: band systems and spectral simulation

摘要

Following the renewed interest in metal oxide emissions in the night airglow, high-resolution laboratory observationsnof NiO* in the visible and near-infrared regions of the spectrum are reviewed, and approximate spectroscopic constantsnare derived to augment those already available in the literature. A preliminary spectral band simulation model is developednfor the relevant NiO systems. Franck–Condon factors, calculated using the preliminary spectroscopic constants, are used innthe model to conduct an iterative comparison with low-resolution NiO* chemiluminescent emissions observed in the laboratory.nRelative vibrational level populations are estimated, and shortcomings of the model are noted. The existence of a newnNiO band system is also suggested.