Affordable Access

E/Z-Photoisomerization of N,N'-Bis(4-dimethylaminobenzylidene)1,2-diaminoethane and N,N'-Bis(4-dimethylaminobenzylidene)1,3-diaminopropane in Chloroform

E-Journal of Chemistry
Publication Date
  • Chemistry
  • Mathematics


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.

There are no comments yet on this publication. Be the first to share your thoughts.