The effect of heavy metals on the anthracene-Me-[beta]-cyclodextrin host-guest inclusion complexes

Anthracene was used to form an inclusion complex with methylated-[beta]-cyclodextrin (Me-[beta]-CD) in water. In aqueous Me-[beta]-CD solution, typical fluorescence emission of anthracene was observed. Benesi-Hildebrand's method was used to obtain the stoichiometry of the anthracene-Me-[beta]-C...

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Bibliographic Details
Published inSupramolecular chemistry Vol. 26; no. 1; p. 66
Main Authors Ay, Umit, Dogruyol, Zekeriya, Arsu, Nergis
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis Ltd 01.01.2014
Subjects
Aqueous solutions
Metals
Molecular structure
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Summary:Anthracene was used to form an inclusion complex with methylated-[beta]-cyclodextrin (Me-[beta]-CD) in water. In aqueous Me-[beta]-CD solution, typical fluorescence emission of anthracene was observed. Benesi-Hildebrand's method was used to obtain the stoichiometry of the anthracene-Me-[beta]-CD complex. The Stern-Volmer quenching constants, Ksv, and fluorescence quantum yields were calculated according to changes in the fluorescence emission intensity of anthracene-Me-[beta]-CD inclusion complexes by adding various amounts of Pb2+ and Cd2+ salts in water. The Ksv values and fluorescence quantum yields indicate that Pb2+ salts quench the anthracene-Me-[beta]-CD inclusion complexes more efficiently than Cd2+ salts. [PUBLICATION ABSTRACT]
ISSN:1061-0278
1029-0478
DOI:10.1080/10610278.2013.822971