dc.creator AI-Share, M. en_US dc.creator Johri, G. K. en_US dc.creator Roberts, J. A. en_US dc.date.accessioned 2006-06-15T18:43:31Z dc.date.available 2006-06-15T18:43:31Z dc.date.issued 1990 en_US dc.identifier 1990-TD-1 en_US dc.identifier.uri http://hdl.handle.net/1811/18278 dc.description $^{\ast}$ This work was supported in part by grant B-0842 from the Robert A. Welch Foundation, Houston. Texas. $^{\ast\ast}$Robert, A. Welch Foundation Post Doctoral Fellow on leave from D. A. -V. College, Kanpur, INDIA. en_US dc.description Author Institution: Department of Physics, University of North Texas; D. A. -V. College, (Kanpur University); Department of Physics, University of North Texas en_US dc.description.abstract The microwave spectrum of $^{12}CH_{3}^{12} C^{15} N$ and $^{13}CH_{3}^{13} C^{15} N$ for $1\leq J \leq 5$ over the freouency range of 17-95 GHZ was investigated for the vibrational states $n\nu_{8}, n=1, 2$ and $3, \nu_{7}$ and $\nu_{4}$ to determine if systematic differences between theory and experiment as had been found for the 1$^{12}CH_{3}^{13} C^{15} N$ were also present in these two molecules for the $A^{-}. (K=\ell =+1)$, and $A^{-}. (K=\ell =-1$. vibrational species. Large departures observed in the rotational spectra of the molecular species of $^{13}C$ and $^{15}N$ substituted methyl cyanide seem to provide basis for a study of fundamental interactions in molecular systems with $C_{3v}$, symmetry. The presence of each isotoe alters the frequency position of each internal mode for the molecule and this substitution seems to bring some energy levels into closer resonance conditions with ensuing strong interaction between energy states. en_US dc.format.extent 68715 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title ROTATIONAL SPECTRA IN THE $n\nu_{5}, n=1, 2, 3, \nu_{7}$ AND $\nu_{4}$ VIBRATIONS OF THE $^{13}CH_{3}^{12} C^{15} N ^{13}CH_{3}^{13}C^{15} N$ MOLECULES FOR $1\leq J \leq 5$ IN THE FREQUENCY RANGE 17-95 GHZ en_US dc.type article en_US
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