dc.creator Tokaryk, D. W. en_US dc.date.accessioned 2006-06-15T20:37:58Z dc.date.available 2006-06-15T20:37:58Z dc.date.issued 2003 en_US dc.identifier 2003-RG-05 en_US dc.identifier.uri http://hdl.handle.net/1811/20910 dc.description $^{a}$D. Forney, M. E. Jacox, and W. E. Thompson, J. Mol. Spectrosc. 170, 178 (1995). en_US dc.description Author Institution: Physics Department, University of New Brunswick en_US dc.description.abstract $C_{2}$H, a linear radical, is a very common speices in the interstellar medium and in other astrophysical sources. It is also produced in flames, and is an important fragment in the photodissociation of acetylene. The molecule has a very complex infrared and near-infrared spectrum due to strong interactions between the ground state $\tilde{X}^{2}\Sigma^{+}$ ground state and the first excited electronic state $\tilde{A}{^{2}}\Pi$, about $3700 cm^{-1}$ above. We have found that we produce a great deal of $C^{2}H$ in a methane-helium plasma set up originally to investigate the spectrum of $C_{3}$ with near-infrared diode lasers. Four new bands in the $6000-7000 cm^{-1}$ range have been observed so far, all originating on $\tilde{X}{^{2}}\Sigma^{+}$. A previously published $study^{a}$ on the spectrum of matrix-isolated $C^{2}H$ indicates that many more bands can be observed in nearby regions. We will present an overview of the work done to date, and discuss the implications of this work in achieving a better understanding of the complicated spectrum of this simple radical. en_US dc.format.extent 193362 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title NEAR-INFRARED LASER SPECTROSCOPY OF $C_{2}$H en_US dc.type article en_US
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