Spectroscopic and electrochemical behavior of newly synthesized high fluorescent symmetric 4'-nitrophenyl-3,4,9,10-perylenebisdiimide-azo hybrid dyes.
作者： Aamer Saeed , Ghulam Shabir , Jamaluddin Mahar , Madiha Irfan , None
DOI: 10.1016/J.SAA.2015.06.046
关键词:
摘要: The investigation has been made in the synthesis of azo hybrid rylene dyes. hybridization perylene bis-diimide with phenolic azo-dyes was carried out by nucleophilic substitution (SNAr) reaction tetrachloroperylene-3,4,9,10-bisdiimide 3 4a-g basic medium. dyes exhibited two absorption maxima λmax range 300-350, 426-438 nm ethanol due to presence linkage and highly conjugated framework π bonds. Fluorescence spectra these water showed sharp emission peaks small bandwidths 490-495 nm, fluorescence quantum yield 0.71-0.83 comparison standard reference fluorescein. structures perylene-azo were elucidated FTIR NMR spectroscopy. Luminescence determined LS-100 meter which found be excellent limits 0.208-0.239 cd/m(2). Cyclic voltammetric studies Electrochemical Analyzer CH1830C oxidation chemical potential
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