Abstract

Trimesonitrile-¹⁴N₃ and trimesonitrile-¹⁵N₃ containing 99% nitrogen-15 were synthesized and their IR and Raman spectra recorded, both in solid phase and dissolved. The data obtained were used to assign the vibrational spectra of the two molecules on the basis of a <i>D</i>_3<i>h</i> symmetry. We also used the MINDO/3 and AM1 methods to calculate a semi-empirical force field for both compounds after optimizing their molecular geometry by each method.

Predictions of far-infrared laser lines from ¹⁴NH₃ and ¹⁵NH₃

Eva M. Frank, C. O. Weiss, K. Siemsen, M. Grinda, and G. D. Willenberg
Opt. Lett. 7(3) 96-98 (1982)

Continuous-wave Stark far-infrared lasing lines in ¹⁵NH₃ optically pumped by a CO₂ or N₂O laser

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Opt. Lett. 6(9) 449-451 (1981)

Calibration of the absorption spectra at 14–15 μm obtained with a tunable diode laser

John S. Knoll, Gregory L. Tettemer, Walter G. Planet, K. Narahari Rao, Da-Wun Chen, and L. A. Pugh
Appl. Opt. 15(12) 2973-2974 (1976)

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C. R. Dillard and J. R. Lawson
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Lattice vibrations of CdCl₂, CdBr₂, MnCl₂, and CoCl₂: infrared and Raman spectra*

D. J. Lockwood
J. Opt. Soc. Am. 63(3) 374-382 (1973)