Abstract
Inclusion complex of naphthalene with methyl-beta-cyclodextrin in water has been formed. The aqueous solutions of the various amounts of Co2+ve Mn2+salts have been added to naphthalene-methyl-beta-cyclodextrin (NAP-Me-β-CD) inclusion complexes. Fluorescence properties of the naphthalene (NAP) compound have been utilized to observe the changes in fluorescence intensities. Stern-Volmer quenching constants and fluorescence quantum yields have been calculated. Characterization of the resulting complex by FT-IR and 1H NMR technique has been determined. Fluorescence lifetime measurements have been made in the presence and absence of the quenching reagent and Gibbs free energy change has been calculated.
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Acknowledgements
As the authors, we would like to thank to Scientific Research Coordinaton Unit (BAP) of Kocaeli University (Project No: 2017/010) for their contribution to this study, and to the Department of Chemistry of Gebze Technical University for their assistance in measurements of the fluorescence lifetime. We thank TUBITAK (UME) for their assistance in measurements of 1H NMR.
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Ay, U., Sarlı, S.E. Investigation by Fluorescence Technique of the Quenching Effect of Co2+ and Mn2+ Transition Metals, on Naphthalene-Methyl-Beta-Cyclodextrin Host-Guest Inclusion Complex. J Fluoresc 28, 1371–1378 (2018). https://doi.org/10.1007/s10895-018-2301-9
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DOI: https://doi.org/10.1007/s10895-018-2301-9