| Literature DB >> 11982364 |
Ming He1, Rolanda J Johnson, Jorge O Escobedo, Patricia A Beck, Kyu Kwang Kim, Nadia N St Luce, Claude J Davis, Patrick T Lewis, Frank R Fronczek, Bruce J Melancon, Anthony A Mrse, W Dale Treleaven, Robert M Strongin.
Abstract
The colorimetric properties of resorcinarene solutions had not been investigated since Baeyer's initial synthesis. We recently reported that solutions containing resorcinarene macrocycles develop color upon heating or standing. In the presence of saccharides, these solutions exhibit significant color changes which are easily seen. We herein present strong evidence that the solution color is due to macrocycle ring opening and oxidation. The optical responses to saccharides are due to complexation of the sugar with the acyclic chromophores. We apply these mechanistic insights toward the challenging problem of the visual detection of neutral oligosaccharides by simple chromogens. In addition, we also report the first single-crystal X-ray crystal structure determination of a rarely observed "diamond" resorcinarene stereoisomer.Entities:
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Year: 2002 PMID： 11982364 PMCID： PMC3386614 DOI： 10.1021/ja017713h
Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419