Fluorescence spectra of NH2 2B1← 2A1 Σ bands: Experiment and theory (original) (raw)

The Journal of Chemical Physics

Abstract

We report new calculations and measurements of fluorescence properties of the title system, which is important in astrochemical processes. Dispersed fluorescence spectra show extensive 2B1 vibrational progressions that depend on the initial 2A1 state. Observed and calculated (0,ν2′,0)Σ lifetimes are in good accord, save for ν2′ = 4 (bent molecule notation), and calculated (1,ν2′−2,0)Σ lifetimes are longer than the (0,ν2′,0)Σ ones. The calculated laser-induced fluorescence spectrum is compared with experimental absorption data and with previous calculations, finding that the present treatment underestimates the intensity of the (0,4,0)Σ band. © 2003 American Institute of Physics.

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