Steady state and time resolved methods of fluorescence quenching of three coumarin dyes using S-V plots
نویسندگان
چکیده
R M Melavanki*, N R Patil, H D Patil, R A Kusanur & J S Kadadevaramath Department of Physics, M S Ramaiah Institute of Technology Bangalore 560 054, Karnataka, India Department of Physics, B V B College of Engineering and Technology, Hubli 580 031, Karnataka, India Department of Physics, Basaveshwar Science College, Bagalakot, Karnataka, India 4 Department of Chemistry, Karnatak University, Dharwad 580 003, Karnataka, India 5 Department of Physics, Karnatak University, Dharwad 580 003, Karnataka, India *E-mail: [email protected]
منابع مشابه
Quenching of the Fluorescence of a Coumarin Derivative by Aromatic Amines
The effect of three aromatic amines namely aniline (AN), dimethyl aniline (DMAN) and diethyl aniline (DEAN) on emission properties of a coumarin derivative 6-methyl-3azidoacetyl coumarin (6M3AAC) in acetonitrile was studied by means of steady state fluorescence spectroscopy. The quenching of fluorescence intensity was observed in the presence of amines. The quenching process was characterized b...
متن کاملJournal of Engineering, Computers & Applied Sciences (JEC&AS) ISSN No: 2319-5606 Volume 1, No.3, December 2012 _________________________________________________________________________________
The effect of three aromatic amines namely aniline (AN), dimethyl aniline (DMAN) and diethyl aniline (DEAN) on emission properties of a coumarin derivative 6-methyl-3azidoacetyl coumarin (6M3AAC) in acetonitrile was studied by means of steady state fluorescence spectroscopy. The quenching of fluorescence intensity was observed in the presence of amines. The quenching process was characterized b...
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The efficiency of HZSM-5 Zeolite, tungestophosphoric acid (H3PW12O40) and tungestosililic acid (H4O40SiW12) were investigated in three-component, one-pot synthesis of coumarin dyes. These green and noncorrosive acids were highly efficient in synthesis of some coumarin dyes in excellent yield during concurrent formation of coumarin and benzimidazole or benzoxazole heterocycles (e.g. C. I. disper...
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