Chromophore formation in resorcinarene solutions and the visual detection of mono- and oligosaccharides |
| |
Authors: | He Ming Johnson Rolanda J Escobedo Jorge O Beck Patricia A Kim Kyu Kwang St Luce Nadia N Davis Claude J Lewis Patrick T Fronczek Frank R Melancon Bruce J Mrse Anthony A Treleaven W Dale Strongin Robert M |
| |
Institution: | Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA. |
| |
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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|