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|Title:||Photocyclisation of phenylbenzoquinone: A time resolved photoacoustic calorimetric and flash photolytic study|
Arnaut, Luis G
Formosinho, Sebastiao J
|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.|
|Appears in Collections:||IJC-A Vol.42A(08) [August 2003]|
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