# WAVELENGTH. RESOLVED FLUORESCENCE STUDIES OF THE COLLISION DYNAMICS OF $Br_{2}$ (B)

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 Title: WAVELENGTH. RESOLVED FLUORESCENCE STUDIES OF THE COLLISION DYNAMICS OF $Br_{2}$ (B) Creators: Heaven, M. C.; Dorko, Ernest A.; Perram, G. P.; Hanko, L. Issue Date: 1988 Publisher: Ohio State University Abstract: Continuous wave excitation and wavelength-resolved fluorescence techniques have been used to study the self-quenching and energy transfer kinetics of $Br_{2} (B)$. A self-quenching rate of $4\times 10^{-10} cm^{3} molecule^{-1} s^{-1}$ was observed for the levels with $v>10, J^{\prime}>15$, in excellent agreement with the results from pulsed $measurements.^{1}$ The rate constants for rotational energy transfer (summed over all final states) were found to be around $6\times 10^{-11} cm^{3} molecule^{-1} S^{-1}$. An upper bound of $5\times 10^{-12} cm^{3} molecule^{-1} S^{-1}$ was established for the vibrational energy transfer rate constant. The c.w. measurements are at variance with the energy transfer rate constants obtained from models of the time-resolved fluorescence decay kinetics.1 The reason for these discrepancies will be discussed. Description: $^{1}$ L.J. van de Burgt and M. C. Heaven, Chem. Phys. 103. 407 (1986) Author Institution: Department of Chemistry, Emory University; AFWL, Kirtland AFB URI: http://hdl.handle.net/1811/17615 Other Identifiers: 1988-RG-13