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Rovibrational Spectrum of C15NC15N in the Region of the Stretching Modes ν1and ν2

✍ Scribed by J.W.Günter Seibert; Manfred Winnewisser; Brenda P. Winnewisser

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
590 KB
Volume
180
Category
Article
ISSN
0022-2852

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✦ Synopsis

The high-resolution gas-phase Fourier transform infrared spectrum of the doubly 15 N substituted isocyanogen C 15 NC 15 N has been measured in the spectral region 1670-2450 cm 01 with an unapodized resolution of 0.0033 cm 01 . The spectrum includes the band systems of the CGN stretching modes n 1 and n 2 around 2272 and 2023 cm 01 as well as the uppermost component of a Fermi triad involving 4n 4 , 2n 4 / n 3 , and 2n 3 around 1940 cm 01 . The two remaining components of this Fermi resonance triad are too weak to be seen under the given experimental conditions. Constants of a power series in J(J / 1) were determined for all assigned subbands, and accurate molecular constants were determined using the effective Hamiltonian for linear polyatomic molecules defined by Yamada, Birss, and Aliev [J. Mol. Spectrosc. 112, 347-356 (1985).]. The analysis of the rotational constants in terms of the rotation-vibration interaction constants is presented. The equilibrium rotational constant B ˜e was found to be 0.166 405 6(69) cm 01 for C 15 NC 15 N.

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