Document details

Rotational isomerization of small carboxylic acids isolated in argon matrices: ...

Author(s): Maçôas, Ermelinda M. S. cv logo 1 ; Khriachtchev, Leonid cv logo 2 ; Pettersson, Mika cv logo 3 ; Fausto, Rui cv logo 4 ; Räsänen, Markku cv logo 5

Date: 2005

Persistent ID: http://hdl.handle.net/10316/17904

Origin: Estudo Geral - Universidade de Coimbra


Description
The quantum yields for internal rotation around the C–O bond induced by excitation of the first overtone of the hydroxyl stretching mode in formic, acetic, and propionic acids isolated in solid Ar are comparatively discussed. The tunnelling kinetics for isomerization from the higher energy arrangement of the carboxylic group (cis) to the lower energy arrangement (trans) in this series of compounds is also analysed. Finally, the quantum yield for the Cα–C isomerization in propionic acid was investigated and, in contrast with the C–O isomerization, shown to be probably sensitive to the local matrix morphology.
Document Type Article
Language English
delicious logo  facebook logo  linkedin logo  twitter logo 
degois logo
mendeley logo

Related documents



    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento EU