dc.creator Wright, Scott A. en_US dc.creator Dagdigian, Paul J. en_US dc.date.accessioned 2006-06-15T15:28:56Z dc.date.available 2006-06-15T15:28:56Z dc.date.issued 1996 en_US dc.identifier 1996-FD-12 en_US dc.identifier.uri http://hdl.handle.net/1811/13420 dc.description Author Institution: Department of Chemistry, The Johns Hopkins University en_US dc.description.abstract Electronically excited levels in the NCO free radical have been probed using laser fluorescence excitation, in order to observe higher vibronic levels of the $\tilde{A}^{2}\Sigma^{+}$ state and to locate the onset of predissociation. Spectra have been recorded over the wave number range 27 400 - $32 900 cm^{-1}$, from the $\tilde{A}(0, 0, 2)^{2}\Sigma^{+}\leftarrow \tilde{X}(0, 0, 0)^{2}\Pi$ band up through the $\tilde{B}(1,0,0)^{2}\Pi\leftarrow \tilde{X}(0, 0, 0)^{2}\Pi$ band. Vibrational assignments have been made for a number of newly observed $\tilde{A}(0, 0, 2)^{2}\Sigma^{+}\leftarrow \tilde{X}(0, 0, 0)^{2}\Pi$ bands, and the band origin wave numbers and upper level rotational constants have been derived by comparison of spectra with simulations. Decay lifetime have been measured for a large number of both assigned and unassigned excited vibronic levels. The onset of predissociation appears to occur at energies slightly below that of the $\tilde{B}(0,0,0)$ level, at $31 750 cm^{-1}$. These data also suggest that predissociation occurs at lower energies in bent geometries that in a linear configuration. en_US dc.format.extent 98939 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title RADIATILVE AND NONRADIATIVE DECAY OF ELECTRONICALLY EXCITED NCO en_US dc.type article en_US
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