title: Rotational isomerism in acetic acid: the first experimental observation of the high-energy conformer.
abstract: The high-energy conformer of acetic acid (cis-AA) is produced in an Ar matrix by vibrational excitation of the OH stretching overtone of the ground conformational state (trans-AA). IR-absorption spectroscopy provides a clear identification of the reaction product. cis-AA converts back to trans-AA in a time scale of minutes at 8 K by tunneling.
authors.affiliation: Laboratory of Physical Chemistry, P.O. Box 55, FIN-00014 University of Helsinki, Finland.
authors.forename: Ermelinda M S
authors.initials: EM
authors.lastname: Maçôas
authors.forename: Leonid
authors.initials: L
authors.lastname: Khriachtchev
authors.forename: Mika
authors.initials: M
authors.lastname: Pettersson
authors.forename: Rui
authors.initials: R
authors.lastname: Fausto
authors.forename: Markku
authors.initials: M
authors.lastname: Räsänen
mesh_terms: D019342:Acetic Acid / Q000737:chemistry*; D007536:Isomerism; D007700:Kinetics; D008956:Models, Chemical; D008968:Molecular Conformation; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D019342:Acetic Acid