Polymer-supported calix[4]arenes for sensing and conversion of NO2/N2O4 |
| |
Authors: | Yanlong Kang |
| |
Institution: | Department of Chemistry and Biochemistry, University of Texas at Arlington, PO Box 19065, Arlington, TX 76019-0065, USA |
| |
Abstract: | The use of simple calix4]arenes 1a,b for NO2/N2O4 sensing and conversion is demonstrated, both in solution and in the solid state. Upon reacting with these gases, compounds 1a,b encapsulate reactive NO+ cations within their cavities with the formation of deeply colored (λmax∼570 nm) charge-transfer complexes 2a,b. Further functionalization of the calix4]arene platform is reported for attachment to solid supports. Polymer-supported calixarene material 3 was prepared, which reversibly traps NO2/N2O4 with the formation of nitrosonium storing polymer 4. Material 4 was effectively used for nitrosation of amides. |
| |
Keywords: | Calixarenes Nitrogen oxides Polymers Sensors Supramolecular chemistry |
本文献已被 ScienceDirect 等数据库收录! |
|