Journal
JOURNAL OF PHYSICAL CHEMISTRY A
Volume 116, Issue 17, Pages 4388-4395Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp3015194
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Funding
- INDO-EU
- DST, India
- HBCSE, TIFR as a part of National Initiative on Undergraduate Science (NIUS)
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The feasibility of using cucurbituril host molecule as a probable actinyl cation binders candidate is investigated through density functional theory based calculations. Various possible binding sites of the cucurbit[5]uril host molecule to uranyl are analyzed and based on the binding energy evaluations, mu(5)-binding is predicted to be favored. For this coordination, the structure, vibrational spectra, and binding energies are evaluated for the binding of three actinyls in hexa-valent and penta-valent oxidation states with functionalized cucurbiturils. Functionalizing cucurbituril with methyl and cyclohexyl groups increases the binding affinities of actinyls, whereas fluorination decreases the binding affinities as compared to the native host molecule. Surprisingly hydroxylation of the host molecule does not distinguish the oxidation state of the three actinyls.
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