Kinetics of excited B3Π(0+) states of BrF, ICland IF. Fluorescence decay lifetimes and quenching cross-sections

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Abstract
The fluorescence excited by 8 ns pulses from a tunable dye laser has been used to determine collisional and non-collisional lifetimes of selected vibrational-rotational levels of the B3Π(0+) states of BrF and ICl. Less extensive data on IF are also reported. The results for the non-collisional lifetimes τ0 and the quenching rate constants kM are summarized as follows. [graphic omitted].