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Title: Photocyclisation of phenylbenzoquinone: A time resolved photoacoustic calorimetric and flash photolytic study
Authors: Chattopadhyay, Nitin
Serpa, Carlos
Arnaut, Luis G
Formosinho, Sebastiao J
Issue Date: Aug-2003
Publisher: NISCAIR-CSIR, India
Abstract: Energetics of formation of the intermediate during the photocyclisation of phenylbenzoquinone (PBQ) to 2-hydroxydibenzofuran (HDBF) in methanol solvent has been investigated by employing the time-resolved photoacoustic calorimetric (TRPAC) technique. The study, in conjugation with the nanosecond/microsecond flash photolytic observations, confirms the formation of a long lived intermediate during the photocyclisation reaction. TRPAC result and semi-empirical (AM1 and PM3) calculations suggest that the intermediate is a biradical.
Page(s): 1827-1832
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.42A(08) [August 2003]

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