The .nu.(10)= 1 Level of Propyne, H3C-C=CH, and Its Interactions with .nu.(9)=1 and .nu.(10)=2
1.
SYSNO ASEP
0181513
Document Type
J - Journal Article
R&D Document Type
Journal Article
Subsidiary J
Ostatní články
Title
The .nu.(10)= 1 Level of Propyne, H3C-C=CH, and Its Interactions with .nu.(9)=1 and .nu.(10)=2
Author(s)
Müller, H. S. P. (DE) Pracna, Petr (UFCH-W) Hornemam, V. M. (FI)
Source Title
Journal of Molecular Spectroscopy. - : Elsevier
- ISSN 0022-2852
Roč. 216, - (2002), s. 397-407
Number of pages
11 s.
Language
eng - English
Country
US - United States
Keywords
methylacetylene ; high resolution ; FTIR spectroscopy
Subject RIV
CF - Physical ; Theoretical Chemistry
R&D Projects
GA203/01/1274 GA ČR - Czech Science Foundation (CSF)
ME 445 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ
AV0Z4040901 - UFCH-W
Annotation
Almost 300 new rotational transitions within the fundamental vibrational level v(10)=1 of propyne have been measured in selected regions between 495 and 925 GHz spanning the quantum numbers 28less than or equal toJless than or equal to54 and 0less than or equal toKless than or equal to16. The accuracies are mostly between 10 and 20 kHz. In addition, the J"=4 and 5 transitions near 85 and 103 GHz have been remeasured. Simultaneous analyses with refined rovibrational data have been performed, showing that even this lowest and seemingly isolated vibrational level needs a global treatment when high K transitions are involved. The global model with the v(10)=1 level coupled to the next higher cluster of levels, v(10)=2/v(9)=1, by Fermi and Coriolis resonances is necessary for a quantitative reproduction of both the rovibrational and rotational data within their experimental uncertainties.
