E/Z-Photoisomerization of N,N'-Bis(4-dimethylaminobenzylidene)1,2-diaminoethane and N,N'-Bis(4-dimethylaminobenzylidene)1,3-diaminopropane in Chloroform
The E/Z-Photoisomerization of Schiff bases N,N'-bis(4-dimethylamino benzylidene)1,2-diaminoethane (BDAE) and N,N'-bis(4-dimethylaminobenzyli-dene)1,3-diaminopropane (BDAP) were studied by UV-Vis absorption spectroscopy and theoretical chemistry calculations. Photochemical investigations in...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2011-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/918589 |
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| Summary: | The E/Z-Photoisomerization of Schiff bases N,N'-bis(4-dimethylamino benzylidene)1,2-diaminoethane (BDAE) and N,N'-bis(4-dimethylaminobenzyli-dene)1,3-diaminopropane (BDAP) were studied by UV-Vis absorption spectroscopy and theoretical chemistry calculations. Photochemical investigations in solution depict the time resolved spectral changes, recorded before and after irradiation. The shift indicates the transformation from E to Z configuration of the C=N bond in solution for BDAE and BDAP. Spectra profiles and kinetic constants were evaluated using multivariate curve resolution and non-linear least squares curve fitting by toolbox of MATLAB program using the corresponding absorption spectra-time data. The experimental results show that BDAP can perform the photochromism easier than BDAE, may be due to the molecular topology difference. |
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| ISSN: | 0973-4945 2090-9810 |