| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 177139 | Dyes and Pigments | 2011 | 7 Pages |
Abstract
The solvatochromic behavior of novel carbazole containing dyes obtained by the condensation of 9-ethyl-9H-carbazole-3-carboxaldehyde and 9-ethyl-9H-carbazole-3,6-dicarboxaldehyde with (1-phenylethylidene) propanedinitrile and ethyl-2-cyano-3-phenyl-2-butenoate are described. The dyes were characterized by FT-IR, 1H NMR, 13C NMR, Elemental analysis and Mass spectra. DSC–TGA analysis showed these dyes are thermally stable up to 300 °C. The UV–Vis absorption and fluorescence emission spectra of the dyes were studied in solvents of differing polarity; the dyes exhibited positive solvatochromism and solvatofluorism.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Vinod D. Gupta, Vikas S. Padalkar, Kiran R. Phatangare, Vikas S. Patil, Prashant G. Umape, N. Sekar,