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Synthesis, x-ray structure and anion binding properties of a cryptand-like hybrid calixpyrrole

By Grazia Cafeo, Howard M. Colquhoun, Angela Cuzzola, Mario Gattuso, Franz H. Kohnke, Luca Valenti and Andrew J. P. White


The novel cryptand in/out-3, containing two tripyrrolemethane units briged by three 1,3- diisopropylidenbenzene arms was readily synthesized by a convergent three-step synthesis. It binds fluoride by inclusion with excellent selectivity with respect to a number of other tested anions. The structure of the free receptor and that of its fluoride complex were investigated in solution by NMR spectroscopy. The solid state X-ray structure of the free cryptand 3 was also determined

Publisher: American Chemical Society
Year: 2010
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