Chakrabarty, Alok ; Purkayastha, Pradipta ; Chattopadhyay, Nitin (2008) Laser induced optoacoustic spectroscopy of benzil: evaluation of structural volume change upon photoisomerization Journal of Photochemistry and Photobiology A: Chemistry, 198 (2-3). pp. 256-261. ISSN 1010-6030
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.jphotochem.2008.04.001
Abstract
The cis-skew to trans-planar photoisomerization of benzil in the photoexcited state was studied by laser-induced optoacoustic spectroscopy (LIOAS) in a series of normal alkane solvents at room temperature. The structural volume change due to the photoisomerization process has been estimated and compared with the same calculated from the optimized skew and trans structures. The magnitude of the structural volume change is estimated to be 22.9 ± 1.2 mL/mol. This study reveals that an expansion in volume occurs during the photoinduced isomerization process. In non-polar alkane solvents, the estimated volume change has been argued to be free from electrostrictional contribution.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Laser Induced Optoacoustic Spectroscopy; Photoacoustic Calorimetry; Benzil; Photoisomerization; Structural Volume Change |
| ID Code: | 67480 |
| Deposited On: | 31 Oct 2011 05:10 |
| Last Modified: | 31 Oct 2011 05:10 |
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