Formation and Structural, Energetic and Dynamic Properties of Cyclodextrin Host Tubes and Included Guest Molecules

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Abstract

Experimental data about 3D arrangements and building modes of cyclodextrin (CD) tubes are scarce, though investigations of such assemblies are particularly interesting for a vast array of applications related to organic tubes in general. Opting for a theoretical approach, we studied the organisation of CD tubes by three schemes: a structural examination of geometries from the Cambridge Structural Database, simulated annealing studies based on classical force fields to evaluate the stability of tubular arrangements, and an incremental construction procedure of the tubes by molecular dynamics. For β-CDs, the investigations pointed to a head-to-head configuration, while γ-CDs favoured a head-to-head+tail-to-head triplet. The position and interactions of water molecules inside the obtained tubular arrangements were studied as well. Various complexes for diphenylpolyenes and styrene included in the β- and γ-CDs tubes were considered and compared based on structural, energetic and dynamic criteria.

Original languageEnglish
Pages (from-to)90-109
Number of pages21
JournalSupramolecular Chemistry
Volume27
DOIs
Publication statusPublished - 2015

Keywords

  • cyclodextrins; organic tubes; diphenylpolyenes; supramolecular chemistry; molecular dynamics

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    PAI n°P7/05 - FS2: Functional Supramolecular Systems (FS2)

    CHAMPAGNE, B., De Vos, D., Van der Auweraer, M., Jérôme, C., Lazzaroni, R., Marin, G., Jonas, A., Du Prez, F., Vanderzande, D., Van Tendeloo, G., Van Speybroeck, V., NENON, S. & STAELENS, N.

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    Étude de la formation et des propriétés dynamiques, conformationelles et énergétiques d'assemblages supramoléculaires à base de nanotubes organiques et d'agrégats d'argent dans des brins d'ADN

    Author: Staelens, N., 26 May 2014

    Supervisor: Vercauteren, D. (Supervisor), Leherte, L. (President), Champagne, B. (Jury), Bonifazi, D. (Jury) & Laaksonen, A. (External person) (Jury)

    Student thesis: Doc typesDoctor of Sciences

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