Encapsulation of l-valine, d-leucine and d-methionine by cucurbit[8]uril?
CrystEngComm Pub Date: 2022-01-04 DOI: 10.1039/D1CE01513C
Abstract
The binding interactions of cucurbit[8]uril (Q[8]) with L-valine, D-leucine, and D-methionine, both in aqueous solution and solid state, have been studied by 1H NMR spectroscopy and X-ray crystallography. 1H NMR data indicate that Q[8] can encapsulate these three kinds of amino acids in aqueous solution. X-ray crystallography reveals how the Q[8] binds with the amino acids to form inclusion complexes L-Val2@Q[8], D-Leu2@Q[8], and D-Met2@Q[8] through host-guest interactions. It was also found that the deformation degree of the Q[8] host is related to the molecular size of the encapsulated guests.
![Graphical abstract: Encapsulation of l-valine, d-leucine and d-methionine by cucurbit[8]uril](http://scimg.chem960.com/usr/1/D1CE01513C.jpg)
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Journal Name：CrystEngComm
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CAS no.: 89640-58-4
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