Firew Tarekegn Gemeda

A Review on Effect of Solvents on Fluorescent Spectra

Firew Tarekegn Gemeda · Chemical Science International Journal · 2017

When absorption spectra are measured in solvents of different polarity, it is found that the positions, intensities, and shapes of the absorption bands are usually modified by these solvents. These changes are a result of physical intermolecular solute–solvent interaction forces...

Open access Research Article 10.9734/CSJI/2017/32006

Excitation Wavelength Dependence of Dual Fluorescent Molecules

Firew Tarekegn Gemeda, Mesfin Redi Abshiro & Ahmed Mustefa · International Research Journal of Pure and Applied Chemistry · 2017

The effect of various polar solvents on the absorption and dual fluorescence of 4- (dimethylamino)benzaldehyde (DMABA) was investigated. It was found that in non- polar solvents DMABA shows only one emission band, however in polar solvents second emission band at longer wavelengt...

Open access Research Article 10.9734/IRJPAC/2016/31560