Probing Cucurbituril Assemblies in Water with TEMPO-like Nitroxides: A Trinitroxide Supraradical with Spin-Spin Interactions

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DOIResolve DOI: http://doi.org/10.1021/ja900306m
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TypeArticle
Journal titleJournal of the American Chemical Society
Volume131
Issue15
Pages54025404; # of pages: 3
Subjectnitroxide; probing cucurbit; spectroscopy; single-crystal; supramolecular
AbstractNitroxide free radicals are demonstrated to be useful guests for probing cucurbit[n]uril (CB[n]) assemblies in water by EPR spectroscopy. CB[7] and CB[8] significantly aggregate either in solution or in the solid state (as evidenced by a single-crystal X-ray structure in which CB[8] forms supramolecular triangles with 4-methoxy-TEMPO). The included nitroxides show a striking resistance to biologically relevant reduction, benefiting from the carcerand effect of CB[7] and CB[8] solutions.
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number16390066
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Record identifier7721e657-170d-4d40-a099-2badfd453895
Record created2011-02-14
Record modified2016-05-09
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