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Anion Recognition Using Preorganized Thiourea Functionalized [3]Polynorbornane Receptors
- Source :
- Organic Letters; November 2005, Vol. 7 Issue: 24 p5357-5360, 4p
- Publication Year :
- 2005
-
Abstract
- <UFIGR ID="ol051497qn00001">A new family of [3]polynorbornane frameworks exhibiting conformationally preorganized aromatic thiourea (cleft-like) receptors have been designed and synthesized for anion recognition. These show excellent affinity for the biologically relevant dihydrogenphosphate (H<INF>2</INF>PO<INF>4</INF><SUP>-</SUP>) and dihydrogenpyrophosphate (H<INF>2</INF>P<INF>2</INF>O<INF>7</INF><SUP>2</SUP><SUP>-</SUP>) anions (among others), which are bound in 1:1 and 2:1 (host:anion) ratio, respectively. Moreover, visually striking color changes accompany guest binding, enabling this family to act as colorimetric anion sensors.
Details
- Language :
- English
- ISSN :
- 15237060 and 15237052
- Volume :
- 7
- Issue :
- 24
- Database :
- Supplemental Index
- Journal :
- Organic Letters
- Publication Type :
- Periodical
- Accession number :
- ejs8150682