Synthesis and Properties of pH-Responsive Imidazolium-based Guests
The result's identifiers
Result code in IS VaVaI
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Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Synthesis and Properties of pH-Responsive Imidazolium-based Guests
Original language description
Guest molecules with multiple non-equivalent binding sites are recently extensively studied as important components for complex supramolecular systems. Compounds bearing protondissociable groups (e.g. carboxylate, amine), which pH-affected dissociation can change binding properties of entire molecule, are of a particular interest. Herein, we report a preparation of imidazolium-based guest consisting of adamantane cage, permanently charged (benz)imidazolium cation, and dissociable carboxylic group linkedto the (benz)imidazolium by C5 aliphatic chain. In addition, we examined the binding properties of new guest towards cucurbit[n]urils (CBn, n=6 and 7) and ?-/?-cyclodextrins (CD) using NMR, ITC and ESI-MS techniques. Since the sphere-like adamantane cage perfectly fits the interior of CB7 and ?-CD, these two hosts predominantly occupy the adamantane binding site. On the other hand, the interior cavity of ?-CD and CB6 is too small to include bulky adamantane moiety. Therefore, these host
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
CC - Organic chemistry
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů