Article ID Journal Published Year Pages File Type
1234672 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2012 7 Pages PDF
Abstract

A solvatochromic study on the photophysical properties of two cationic oxazine dyes (brilliant cresyl blue and nile blue) was carried out. The electronic absorption and emission spectra of the dyes were recorded in various organic solvents with different polarity. The ground and the excited state dipole moments of the dyes were estimated from solvatochromic shift method. The solvent dependent spectral shifts in absorption and fluorescence spectra were analyzed by the Katritzky and Kamlet-Taft multi-parameter scales. This work is characterized by detailed quantitative studies on the nature and extent of solvent–solute interactions.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Photophysical properties of two oxazine dyes were recorded in various solvents. ► Ground state and the excited state dipole moments of the dyes were estimated. ► The nature and extent of solvent–solute interactions were characterized.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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