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Journal Articles

The 5$$nu$$$$_{rm NH}$$ and 5$$nu$$$$_{rm ND}$$ vibrational bands of partially deuterated ammonia species

Akagi, Hiroshi; Yokoyama, Keiichi; Yokoyama, Atsushi; Wada, Akira

Journal of Molecular Spectroscopy, 231(1), p.37 - 49, 2005/05

 Times Cited Count:2 Percentile:87.27(Physics, Atomic, Molecular & Chemical)

Absorption spectra of gaseous samples containing NH$$_{2}$$D and NHD$$_{2}$$ have been measured in 11580-11880 and 15280-15610 cm$$^{-1}$$ regions, corresponding to the 5$$nu$$$$_{rm ND}$$ and 5$$nu$$$$_{rm NH}$$ vibrational bands, respectively. Photoacoustic spectroscopy has been utilized for the measurement. The molecular constants of NH$$_{2}$$D in the 5$$nu$$$$_{rm ND}$$ state and NHD$$_{2}$$ in the 5$$nu$$$$_{rm NH}$$ state have been determined by the analysis of the obtained absorption spectrum. Comparing the constants with those of the vibrational ground states, structural changes caused by the stretching excitations have been elucidated. The HND bond angles are decreased by these excitations. The dependence of the molecular constants on the stretching quantum number has been also derived by simple Birge-Sponer and Dunham analyses.

JAEA Reports

CO$$_{2}$$ laser photolysis of clustered ions, I

Ikezoe, Yasumasa; Soga, Takeshi; Suzuki, Kazuya; Ono, Shinichi

JAERI-M 90-141, 55 Pages, 1990/09


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