Millimeter wavelength measurements of the rotational spectrum of 2-aminoethanol

Details Millimeter wavelength measurements of the rotational spectrum of 2-aminoethanol Millimeter wavelength measurements of the rotational spectrum of 2-aminoethanol

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jmosp.217..278w&link_type=abstract

Journal of Molecular Spectroscopy, Volume 217, Issue 2, p. 278-281.

Astronomy and Astrophysics

Astronomy

3

Scientific paper

Aminoethanol is a predicted precursor to the amino acid alanine in the interstellar medium and is therefore of great interest for observational studies. However, previous work involving the rotational spectrum of this molecule is limited to centimeter wavelengths and additional laboratory work is necessary to support astronomical heterodyne spectroscopy. This work presents the Doppler-limited rotational spectrum of aminoethanol measured in selected regions between 72 and 305GHz. Measurements of ground state and ν27 transitions have been extended up to /J=51 and /J=43, respectively. Additional rotational transitions were assigned for the ν25, ν26, ν25+ν27, 2ν27 and ν26+ν27 hot bands, resulting in improved rotational and centrifugal distortion constants for these states.

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