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Millimetre Wave Rotational Spectrum of Glycolic AcidThe pure rotational spectrum of glycolic acid, CH2OHCOOH, was studied in the region 115-318 GHz. For the most stable SSC conformer, transitions in all vibrational states up to 400 cm(exp -1) have been measured and their analysis is reported. The data sets for the ground state, v21 = 1, and v21 = 2 have been considerably extended. Immediately higher in vibrational energy are two triads of interacting vibrational states and their rotational transitions have been assigned and successfully fitted with coupled Hamiltonians accounting for Fermi and Coriolis resonances. The derived energy level spacings establish that the vibrational frequency of the v21 mode is close to 100 cm(exp -1). The existence of the less stable AAT conformer in the near 50 C sample used in our experiment was also confirmed and additional transitions have been measured.
Document ID
Document Type
Reprint (Version printed in journal)
Kisiel, Zbigniew (Polish Academy of Sciences Warsaw, Poland)
Pszczolkowski, Lech (Polish Academy of Sciences Warsaw, Poland)
Bialkowska-Jaworska, Ewa (Polish Academy of Sciences Warsaw, Poland)
Charnley, Steven B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
March 23, 2017
Publication Date
February 4, 2016
Publication Information
Publication: Journal of Molecular Spectroscopy
Volume: 321
ISSN: 0022-2852
Subject Category
Atomic and Molecular Physics
Report/Patent Number
Distribution Limits
Rotational Spectrum