Static and dynamic model for 4-aminodiphenyl fluorescence quenching by carbontetrachloride in hexane

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
M Swaminathan, N Radha

Abstract

The fluorescence quenching of 4-aminodiphenyl (4ADP) with chloromethanes (CH2Cl2, CHCl3 and CCl4) have been studied in solvents of different polarity and viscosity. The quenching rate constants (kq) have been determined in all solvents. For CCl4 and CHCl3 quenching, the kq depends on solvent viscosity whereas for CH2Cl2, the kq values show a mixed trend with no clear-cut variation with either solvent polarity or solvent viscosity. Quenching mechanism involving an intermediate donor-acceptor complex formation is proposed for CH2Cl2 quenching. A positive deviation was observed in the Stern-Volmer (SV) plot for CCl4 quenching in hexane. The static-dynamic model could explain this.

Citations

Dec 25, 2012·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Derick ForchaZerihun Assefa
Sep 20, 2011·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Ahmed S Al-KadyEl-Zeiny M Ebeid
Mar 23, 2010·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Basavaraj G Evale, S M Hanagodimath
Sep 22, 2009·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·S M HanagodimathS R Manohara
Aug 13, 2009·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·P E KeivanidisG Wegner
Aug 12, 2010·Journal of Biomaterials Science. Polymer Edition·Chunmei GaoChen Chen

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