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Title: Photochemistry in microemulsions: Compartmentalization of fluorophore and quenchers
Authors: Panda, M.
Behera, P. K.
Mishra, B. K.
Behera, G. B.
Issue Date: Mar-1998
Publisher: NISCAIR-CSIR, India
Abstract: The fluorescence quenching of 2-naphthol (2-ROH) by some oil-soluble (CCI4)and water-soluble (copper ion, methyl viologen, methylene bis-(ϒ-picolinium bromide) ) quenchers in anionic and cationic microemulsions has been investigated. Both linear and nonlinear Stem-Volmer (SV) behaviour have been encountered for different solvent systems. Both dynamic and transient quenching models have been found to fit the experimental data. “Quenching Sphere of Action” model has been proposed for nonlinearity of SV plots and the probable number of quenchers in the sphere has been determined from Poission distribution. The differential behaviour of 2-ROH for different quenchers has been attributed to compartmentalization of the quenchers at various solubilization pockets of microemulsions.
Page(s): 206-211
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.37A(03) [March 1998]

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