Molecular Containers for NO_<i>X</i> Gases

Abstract

Abstract Supramolecular approaches to visual detection, storage, conversion and use of NO X gases are described that deploy calixarenes and their derivatives, such as hemicarcerands and synthetic nanotubes. Polymer-supported calixarene materials for NO X are also introduced. Chemical fixation of NO2/N2O4 is demonstrated through the transformation into calixarene–NO+ complexes and their use as nitrosonium storing and releasing reagents for organic synthesis. These findings highlight perspectives of supramolecular chemistry and molecular recognition in sensing and fixation of environmentally important gases. Keywords: CalixarenesNitrogen oxidesPolymersSensorsSupramolecular chemistry