The synthesis and photo-physical properties of extended styryl fluorescent derivatives of N-ethyl carbazole

Add time:08/13/2019    Source:sciencedirect.com

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.

We also recommend Trading Suppliers and Manufacturers of ETHYL 2-CYANO-3-PHENYL-2-BUTENOATE (cas 18300-89-5). Pls Click Website Link as below: cas 18300-89-5 suppliers

Prev:Behavioral and electrophysiological responses of Culex quinquefasciatus to certain fatty acid esters
Next:Further studies on the reaction of ethyl benzoylacetate with malononitrile: synthesis of some novel pyridine and pyridazine derivatives☆)