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7-Alkoxy coumarins as fluorescence probes for microenvironments

Muthuramu, K and Ramamurthy, V (1984) 7-Alkoxy coumarins as fluorescence probes for microenvironments. In: Journal of Photochemistry, 26 (1). pp. 57-64.

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7-Alkoxy and 4-methyl-7-alkoxy coumarins show solvent-dependent fluorescence emission. The monomeric fluorescence emission of these alkoxy coumarins was exploited as a probe to measure the surface polarity of the micelles formed by ionic (sodium dodecylsulphate and cetyltrimethyl-ammonium bromide) and non-ionic (Triton X-100) detergents. By comparing the solvent-dependent fluorescence of these alkoxy coumarins in various homogeneous solvents, the polarity of the micelles was determined qualitatively. All three micelles are more polar than hydrocarbon solvents but are less polar than water.

Item Type: Journal Article
Publication: Journal of Photochemistry
Publisher: Elsevier Science
Additional Information: Copyright for this article belongs to Elsevier Science.
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Date Deposited: 21 Aug 2009 06:50
Last Modified: 19 Sep 2010 05:42
URI: http://eprints.iisc.ac.in/id/eprint/22491

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