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High-resolution infrared spectra of NCCN and NCCN |
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| Authors: | Arthur G Maki John C Grecu Brenda Winnewisser Manfred Winnewisser |
| Institution: | a 15012 24th Ave. S.E., Mill Creek, WA 98012-5718, USA b Physikalisch-Chemisches Institut der Justus-Liebig Universität, Heinrich-Buff-Ring 58, D-35392 Giessen, Germany c Department of Physics, Ohio State University, 174 West 18th Avenue, Columbus, OH 43210-1106, USA |
| Abstract: | High-resolution spectra of 15N12C12C15N and 14N13C13C14N have been measured and analyzed from 200 to 3600 cm−1. All the vibrational levels below 900 cm−1 have been observed and characterized. The Fermi resonance between ν2 and 2ν4 has been studied and the resonance constant has been determined for several cases. Several Σ− states have been directly observed for the first time for each isotopomer, the (0001111)0f, (0011111)0f, and (0002222)0f states. The pattern of the energy levels for clusters of l-type resonance coupled levels, such as 0001131,3, has been determined for cyanogen for the first time. Among other things this involved the determination of the vibrational l-type resonance constant, r45. Many of the power series constants, αi and xij, and higher order constants have been determined. |
| Keywords: | Infrared Spectrum Cyanogen Vibrational energy levels |
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