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Structural volume change upon photoisomerization of 2,2´-furil: A photoacoustic calorimetric study

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Title Structural volume change upon photoisomerization of 2,2´-furil: A photoacoustic calorimetric study
 
Creator Sarkar, Deboleena
Chakrabarty, Alok
Chattopadhyay, Nitin
 
Subject Photochemistry
Photoisomerization
Photoacoustic calorimetry
Structural volume change
Furil
Dicarbonyls
 
Description 45-50
The cis-skew → trans-planar photoisomerization of 1, 2-di(furan-2-yl)ethane-1, 2-dione (2, 2´-furil), a 1,2-dicarbonyl compound, in the photoexcited triplet state has been investigated by photoacoustic calorimetry in a series of n-alkane solvents at room temperature. The photoisomerization process is associated with a structural volume change of the probe. This has been evaluated and compared with the theoretically calculated volumes of cis and trans geometries of furil. The study reveals that an expansion in volume occurs during the photoinduced isomerization process. In low polarity alkane solvents, electrostrictional contribution to the estimated volume change has been argued to be negligible.
 
Date 2009-01-13T07:05:41Z
2009-01-13T07:05:41Z
2009-01
 
Type Article
 
Identifier 0376-4710
http://hdl.handle.net/123456789/2761
 
Language en_US
 
Publisher CSIR
 
Source IJCA Vol.48A(1) [January 2009]