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An excited state proton transfer reaction in micellar media

✍ Scribed by Nitin Chattopadhyay; Rina Dutta; Mihir Chowdhury

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 585 KB
Volume: 47
Category: Article
ISSN: 1010-6030
DOI: 10.1016/1010-6030(89)87069-8

No coin nor oath required. For personal study only.

✦ Synopsis

The excited state proton transfer reaction was studied for carbazole (CAZL) in non-ionic (Triton X-100), cationic (cetyltrimethylammonium bromide (CTAB)) and anionic (sodium dodecylsulphate (SDS)) micelles. The micelles strongly affect the equilibrium quotient of the process. Taking the excited state proton transfer reaction as a probe, the critical micelle concentrations (CMCs) for the three micellar solutions were estimated. Furthermore, a phase transition was observed at high ionic strengths for Triton x-100.

Note added in proof

A successful method of CMC determination using twisted intramolecular charge transfer fluorescence from neutral probe molecules has been reported recently from this laboratory (

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