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Org Lett. 2013 Jul 5;15(13):3400-3. doi: 10.1021/ol401452t. Epub 2013 Jun 20.

Aggregation induced emission enhancement in ionic self-assembled aggregates of benzimidazolium based cyclophane and sodium dodecylbenzenesulfonate.

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1
Department of Chemistry, UGC Centre for Advanced Studies, Guru Nanak Dev University, Amritsar 143 005, India.

Abstract

Cyclophane BIMCP-1 undergoes ionic self-assembly with surfactant sodium dodecylbenzenesulfonate (SDBS) at a concentration far below its CMC value to form aggregates with spherical morphology. The rotational restriction of rings in these aggregates facilitates 32-fold enhancement in emission intensity (AIEE) to allow fluorescence based determination of SDBS with 4 μM (1.4 ppm) as the lowest detection limit. Sodium salts of fatty acids and inorganic anions halides, CN(-), HSO4(-), SO4(2-), H2PO4(-), SCN(-), and NO3(-) do not interfere in the estimation of SDBS.

PMID:
23786337
DOI:
10.1021/ol401452t
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