A study on solvatochromism of some monoazo dye derivatives

SIDIR İ., SIDIR Y. G., Berber H., TAŞAL E.

JOURNAL OF MOLECULAR LIQUIDS, vol.178, pp.127-136, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 178
  • Publication Date: 2013
  • Doi Number: 10.1016/j.molliq.2012.11.011
  • Journal Name: JOURNAL OF MOLECULAR LIQUIDS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.127-136
  • Keywords: Azo dye, Electronic absorption spectra, Fluorescence spectra, Solvent effect, Push-pull molecule, Charge transfer band, ELECTRONIC-ABSORPTION-SPECTRA, SOLAR PHOTOCATALYTIC DEGRADATION, INTRAMOLECULAR PROTON-TRANSFER, AZO DYES, DISPERSE DYES, SOLVENT, ISOMERIZATION, SUBSTITUENT, AFFINITIES, MOLECULES
  • Anadolu University Affiliated: Yes

Abstract

The UV-vis and fluorescence spectra of four monoazo dye derivatives were investigated in the solvents with different polarities. Characterization of UV-vis electronic bands is specified by calculating charge transfer energy (E-CT) and ionization potential (I-p). The solvent effects on the absorption and fluorescence band maxima (V-max) were discussed using the solvent parameters. The magnitude and characteristics of the solute-solvent interactions were determined with multiple linear regression analysis. The Pi-Pi(*) transitions of monoazo derivatives are mainly controlled by global interaction, which is induction-dispersive and orientation interactions. (C) 2012 Elsevier B.V. All rights reserved.