Hui, Boon Yih and Zain, Nur Nadhirah Mohamad and Mohamad, Sharifah and Prabu, Samikannu and Osman, Hasnah and Raoov, Muggundha (2020) A comprehensive molecular insight into host-guest interaction of Phenanthrene with native and ionic liquid modified beta-cyclodextrins: Preparation and characterization in aqueous medium and solid state. Journal of Molecular Structure, 1206. ISSN 0022-2860, DOI https://doi.org/10.1016/j.molstruc.2019.127675.
Full text not available from this repository.Abstract
The inclusion complexes of Phenanthrene with native beta CD and ionic liquid modified beta CD were prepared and investigated in both solid and solution states. The formation of the inclusion complexes were successfully monitored by FTIR, TGA, DSC, 1D H-1 NMR, 2D NOESY NMR and UV-vis spectroscopy. The results revealed that Phenanthrene formed 1:1 stoichiometry ratio for both host-guest inclusion complexes with an apparent formation constant of 239.7 M-1 for native beta-cyclodextrin, which was higher than ionic liquid modified beta-cyclodextrin (14.9 M-1). The NMR studies showed that Phenanthrene penetrated into the cavity of both cyclodextrins (CDs) from the more accessible wider side. For beta CD, Phenanthrene displayed one mode of binding, i.e., formation of an inclusion complex. Meanwhile, ionic liquid modified beta-cyclodextrin demonstrated two modes of binding, i.e. inclusion in the CD cavities and interaction with the outer surface of the CD molecules, mainly near the ionic liquid (IL) group. (C) 2020 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Phenanthrene; Cyclodextrins; Ionic liquid; Host-guest inclusion complex |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Science Faculty of Science > Department of Chemistry |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 02 May 2024 04:22 |
| Last Modified: | 02 May 2024 04:22 |
| URI: | http://eprints.um.edu.my/id/eprint/36757 |
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