Blurring the Lines between Host and Guest: A Chimeric Receptor Derived from Cucurbituril and Triptycene |
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| Authors: | Dr Xiaoyong Lu Dr Soumen K Samanta Dr Peter Y Zavalij Prof?Dr Lyle Isaacs |
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| Institution: | Department of Chemistry and Biochemistry, University of Maryland, College Park, USA |
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| Abstract: | We report the synthesis and X‐ray crystal structure of a cucurbituril–triptycene chimeric receptor ( 1 ). Host 1 binds to guests typical of CB6]–CB8], but also binds to larger guests such as blue box ( 20 ) and the Fujita square ( 22 ). Intriguingly, the geometries of the 1 ? 20 and 1 ? 22 complexes blur the lines between host and guest in that both components fulfill both roles within each complex. The fluorescence output of 1 is fully quenched by the formation of complexes with pyridinium‐derived guests. |
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| Keywords: | cucurbituril fluorescence host– guest systems supramolecular chemistry triptycenes |
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