Tuning the Binding Dynamics of a Guest-Octaacid Capsule through Non-Covalent Achoring

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dc.contributor.authorThomas, Suma S.
dc.contributor.authorTang, Hao
dc.contributor.authorGaudes, Adam
dc.contributor.authorBaggesen, Signe B.
dc.contributor.authorGibb, Corrine L. D.
dc.contributor.authorGibb, Bruce C.
dc.contributor.authorBohne, Cornelia
dc.date.accessioned2020-07-20T17:12:14Z
dc.date.available2020-07-20T17:12:14Z
dc.date.copyright2017en_US
dc.date.issued2017
dc.description.abstractHydrophobic or hydrophilic substituents have different effects on the binding dynamics of pyrene derivatives with a 2:1 capsule formed from two octaacid cavitands, showing a subtle interplay of different kinetic factors. Anchoring of the methyl group of 1-methylpyrene within one cavitand slowed the association and dissociation dynamics of the 1:1 complex by at least 1000 times when compared to the 1:1 complex for pyrene. This slow down for the transient formation of the 1:1 complex is responsible for the overall increase in stability of the 2:1 complex without affecting the overall capsule dissociation. For 1-pyrenemethanol, its residence time in the 2:1 capsule is shorter compared to that of pyrene despite both guests having similar equilibrium constants for the binding of the second cavitand, suggesting that the hydroxymethyl substituent close to the equatorial region of the capsule can interact with water during the partial opening of the capsule.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe authors at UVic thank the Natural Sciences and Engineering Research Council of Canada (NSERC) for financial support (RGPIN-121389-2012). B.C.G. and C.L.D.G. gratefully acknowledge the support of the National Institutes of Health (GM 098141).en_US
dc.identifier.citationThomas, S. S., Tang, H., Gaudes, A., Baggesen, S. B., Gibb, C. L. D., Gibb, B. C., & Bohne, C. (2017). Tuning the Binding Dynamics of a Guest-Octaacid Capsule through Noncovalent Anchoring. The Journal of Physical Chemistry Letters, 8 (12), 2573-2578. https://doi.org/10.1021/acs.jpclett.7b00917.en_US
dc.identifier.urihttps://doi.org/10.1021/acs.jpclett.7b00917
dc.identifier.urihttp://hdl.handle.net/1828/11942
dc.language.isoenen_US
dc.publisherJournal of Physical Chemical Lettersen_US
dc.subjectIsotherms
dc.subjectKinetic parameters
dc.subjectDissociation
dc.subjectKinetic modeling
dc.subjectKinetics
dc.subject.departmentDepartment of Chemistry
dc.titleTuning the Binding Dynamics of a Guest-Octaacid Capsule through Non-Covalent Achoringen_US
dc.typePostprinten_US

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