dc.creator Ram, R. S. en_US dc.creator Lievin, J. en_US dc.creator Bernath, P. F. en_US dc.date.accessioned 2006-06-15T19:19:52Z dc.date.available 2006-06-15T19:19:52Z dc.date.issued 1999 en_US dc.identifier 1999-TB-03 en_US dc.identifier.uri http://hdl.handle.net/1811/19432 dc.description $^{a}$ K. Jansson, R. Scullman, and B. Yttermo, Chem. Phys. Lett. 4, 188 (1969). $^{b}$ K. Jansson, and R. Scullman, J. Mol. Spectrosc. 36, 248 (1970). en_US dc.description Author Institution: Department of Chemistry, University of Arizona; Universit\'{e} Libre de Bruxelles, Laboratoire de Chimie Physique Mol\'{e}culaire; Department of Chemistry, University of Waterlook Waterlook Ontario en_US dc.description.abstract The emission spectrum of OsN has been recorded in the $3000 - 13000 cm^{-1}$ region using a Fourier transform spectrometer. OsN molecules were excited in a osmium hollow cathode lamp operated with neon gas and a trace of nitrogen. Six bands observed in the $8000 - 12200 cm^{-1}$ region have been classified into three electronic transitions, a $^{4}\Pi_{5/2} -X {^{2}}\Delta_{5/2}, b {^{4}}\Phi_{7/2} - X^{2}\Delta_{5/2}$ and $b {^{4}}\Phi_{5/2}- X^{2}\Delta_{5/2}$ with the 0-0 band origins near 8381.7, 11147.9 and $12127.2 cm^{-1}$, respectively. UA rotational analysis of these bands provides the following equilibrium constants for the ground electronic state: $\omega_{e}=1147.9492(77) cm^{-1}, \omega_{e}x_{e}=5.4603(36) cm^{-1}, B_{v}= 0.493381(55) cm^{-1}, \alpha_{e}= 0.002753(38)cm^{-1}$, and $r_{e}= 1.618023(91){\AA}$. Ab initio calculations have been performed on OsN and the spectroscopic properties of the low-lying electronic states have been calculated. Our assignments are supported by these calculations. The ground state of OsN has been identified as a ${^{2}}\Delta_{1}$, state consistent with the observations for the isoelectronic IrC $molecule^{a,b}$. The $1\sigma^{2}2\sigma^{2}3\sigma^{2} 1\pi^{4}1 \delta^{3}$ electron configuration has been proposed for the ground state and the configurations for the other low-lying electronic states will also be discussed. This work represents the first experimental or theoretical investigation of the electronic spectra of OsN. en_US dc.format.extent 138200 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title FOURIER TRANSFORM EMISSION SPECTROSCOPY AND AB INITIO CALCULATIONS ON OsN en_US dc.type article en_US
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