Partially deuterated water dimer: are there perspectives for its spectroscopic detection in the atmosphere?

Andrei A. Vigasin; Galina V. Chlenova

doi:10.1117/12.724962

13 December 2006 Partially deuterated water dimer: are there perspectives for its spectroscopic detection in the atmosphere?

Andrei A. Vigasin, Galina V. Chlenova

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Proceedings Volume 6580, 15th Symposium on High-Resolution Molecular Spectroscopy; 65800Y (2006) https://doi.org/10.1117/12.724962
Event: 15th Symposium on High-Resolution Molecular Spectroscopy, 2006, Nizhny Novgorod, Russian Federation

Abstract

Recent observations of the water dimer third stretching overtone in the open atmosphere lead onto the idea to look for the signatures of partially deuterated dimers in the range of their stretching fundamentals. On the one hand, the third overtone intensity is roughly three orders of magnitude less than that in the fundamental. On the other hand, the natural abundances of the water isotopomers are known to extend below 0.2% with respect to that of the principal one. The gain can be achieved, however, because of the use of the spectral range which is less crowded by the principal water isotopologue rovibrational lines, because of significant isotopic shift of the band origin. This work is targeted at preliminary search of the suitable spectral window and other conditions which might favor the observation of partially deuterated water dimers using FTIR or tunable lasers instruments.

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Andrei A. Vigasin and Galina V. Chlenova "Partially deuterated water dimer: are there perspectives for its spectroscopic detection in the atmosphere?", Proc. SPIE 6580, 15th Symposium on High-Resolution Molecular Spectroscopy, 65800Y (13 December 2006); https://doi.org/10.1117/12.724962

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