Does Larger Cavity‐Size Really Help Bigger Anions to Bind? A Scrutiny on Core‐Expanded Calix[4]pyrroles and Their Properties
Monalisa Giri,
Yashaswini Dash,
Tapas Guchhait
Abstract:Calix[4]pyrroles are an important class of oligopyrrolic macrocycles and have found applications in many diverse fields including anion recognition. To modulate the properties of the calix[4]pyrrole, several structural modifications are realized. The core‐expansion has attracted extra attention as it provides larger cavity‐size compared to parent calix[4]pyrrole(s). This review highlights the synthetic development of various core‐expanded calix[4]pyrroles and their applications in anion‐binding properties. Emp… Show more
The first example of N-confused strapped calix[4]pyrrole 5 is presented. Structural integrity of 5 and its regular isomer 4 was unambiguously confirmed by the single crystal X-ray diffraction analysis. Receptor...
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