Synthesis, Substituent Effect and Investigations of the Absorption Spectra of Some New Heterocyclic Disperse Azo Dyes Derived from N-Benzyl- N-Ethyl- Aniline

Seven new azo disperse dyes based on N-benzyl- N-ethyl- aniline were synthesized and characterized by UV-Vis, FT-IR and 1H NMR spectroscopic techniques. The UV-visible studies and solvatochromic behavior of all dyes in 13 solvents with different polarity were examined and a meaningful correlation was observed. Also, we evaluated the substituent and extension of resonance system effects on absorption maximum of synthesized heterocyclic dyes.

کلیدواژه ها:

Disperse azo dyes ، Solvent effect ، Substituent effect ، UV-Vis spectroscopy ، Solvatochromism