Rotational Isomerism in Acetic Acid: The First Experimental Observation of the...

• Author(s): Maçôas, Ermelinda M. S. ; Khriachtchev, Leonid ; Pettersson, Mika ; Fausto, Rui ; Räsänen, Markku
• Date: 2003
• Persistent ID: http://hdl.handle.net/10316/10620
• Origin: Estudo Geral - Universidade de Coimbra
• Document Type: Article
• Language: English

Description

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. http://dx.doi.org/10.1021/ja038341a