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Infrared Spectroscopy of the Amidogen Ion, NH+2

✍ Scribed by Y. Kabbadj; T.R. Huet; D. Uy; T. Oka

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
392 KB
Volume
175
Category
Article
ISSN
0022-2852

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✦ Synopsis

The absorption spectrum of NH / 2 has been recorded continuously between 3500 and 2900 cm 01 with a difference frequency laser spectrometer along with the velocity modulation technique. The molecular ions were produced in the positive column of an ac glow discharge with a gas mixture of N 2 /H 2 /He in a ratio of around 1/1/100 with a total pressure of Γ‡7 Torr. In view of the very low barrier to linearity (155 cm 01 ) and the high bending vibrational states involved, the observed spectrum was analyzed using the Hamiltonian for linear molecules. The choice of this model is discussed in relation to the previous experimental results and ab initio calculations. Four hot bands have been assigned: 2n 0

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