کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
176875 | 458958 | 2013 | 8 صفحه PDF | دانلود رایگان |
A series of novel dyes, whose structures are based on 5-phenyl-1,2,3,4-tetrahydronaphthalene skeleton have been fully synthesized and characterized. The dyes were prepared in two-stage synthesis reaction. The 2-cyano-3-[4-aminophenyl]-2-propenamide derivatives, and the final dyes were characterized by 1H and 13C NMR spectroscopy and their purity was checked by thin-layer chromatography and finally HPLC. The spectroscopic properties of the prepared dyes were studied in four different solvents.
► A series of biphenyl dyes were synthesized in two-stage synthesis and characterized.
► The electronic absorption and fluorescence spectra have been investigated.
► The spectroscopic behavior of the tested dyes in four solvents has been compared.
► The large red shifts of the emission bands in polar solvents are observed.
Journal: Dyes and Pigments - Volume 96, Issue 1, January 2013, Pages 63–70