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THE MICROWAVE SPECTRUM OF $X^{2}{\Sigma}$ CN IN ITS GROUND AND FIRST EXCITED VIBRATIONAL STATES

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/9891

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dc.creator Dixon, T. A. en_US
dc.creator Woods, R. C. en_US
dc.date.accessioned 2006-06-15T13:51:02Z
dc.date.available 2006-06-15T13:51:02Z
dc.date.issued 1976 en_US
dc.identifier 1976-TS-4 en_US
dc.identifier.uri http://hdl.handle.net/1811/9891
dc.description Author Institution: Department of Chemistry, University of Wisconsin en_US
dc.description.abstract The microwave absorption spectrum $(K = 0 {\rightarrow} 1)$ of the CN radical in the $v = 0$ and 1 levels of the electronic ground state has been observed in glow discharges in nitrogen-cyanogen mixtures. A phase-locked, computer controlled Zeeman modulation system is used with the cell at room temperature. The zero field frequencies of the seven major hyperfine components for each vibrational stare are extracted from the complicated Zeeman modulation patterns observed by a careful least squares analysis of the line-shapes. The molecular constants obtained for $v = 0$ are in good agreement with, but more accurate than, the previous astrophysical values, and for $v = 1$ the present work constitutes the first determination of the hyperfine constants. The precision of the determined molecular parameters in both states is sufficient to obtain reliably the variation of the coupling constants with vibrational quantum number. en_US
dc.format.extent 114107 bytes
dc.format.mimetype image/jpeg
dc.language.iso English en_US
dc.title THE MICROWAVE SPECTRUM OF $X^{2}{\Sigma}$ CN IN ITS GROUND AND FIRST EXCITED VIBRATIONAL STATES en_US
dc.type article en_US