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Luminescence behavior of 7-azaindole in AOT reverse micelles

✍ Scribed by Jayanti Guha Ray; Pradeep K. Sengupta

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 600 KB
Volume: 230
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)01154-0

No coin nor oath required. For personal study only.

✦ Synopsis

The fluorescence emission properties of 7-azaindole (7AI) are examined in aerosol-OT (AOT) reverse micelles in n-heptane. The emission dramatically changes from a typical dual fluorescence (A,,,, x 326, 480 nm) behavior in n-heptane, to a single fluorescence band (&,,,, z 350 nm) with enhanced yield in the presence of AOT. Upon progressive addition of water to the 7AI/ AOT/n-heptane solutions the emission undergoes a red-shift, along with significant decreases in quantum yield and drastic changes in decay kinetics. The results are interpreted in terms of the variations in the microenvironments of 7A1, which depend in a sensitive manner on the water/surfactant molar ratio.

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