Krupa N. Patel, A. Bedekar
Nov 25, 2015
Citations
0
Influential Citations
8
Citations
Journal
Tetrahedron Letters
Abstract
Abstract Two series of OPVs (oligo(phenylenevinylene)), that is, ((1 E ,1′ E )-(2,5-dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzene derivatives and 4-(( E )-4-(( E )-styryl)styryl)pyridine derivatives with different functional groups of varying electronic properties have been synthesized by one-pot Wittig–Heck methodology. The synthesized derivatives have been studied for their optical properties. Amongst them the ((1 E ,1′ E )-(2,5-dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzene derivatives with appropriate changes in the end group showed a significant impact on the UV absorption and emission spectra. Particularly NO 2 –OPV showed distinct solvatochromism in the wavelength range of 218 nm in different solvents. Whereas 4-(( E )-4-(( E )-styryl)styryl)pyridine derivatives showed clear acidochromism which can be detected visually as well as spectroscopically.