Supramolecular “Transmetalation” Leads to an Unusual Self-Assembled P2L3 Cryptand


  • We gratefully acknowledge funding from the National Science Foundation (CAREER award CHE-0545206) and the University of Oregon. D.W.J. is a Cottrell Scholar of Research Corporation for Science Advancement. This material is based upon work supported by the U.S. Department of Education under Award No. P200A070436 (V.M.C.).


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Out with the old, in with the new: Can the transmetalation of metal–organic supramolecular assemblies lead to new structure types? A series of Bi, Sb, and As-containing cryptands is reported that can be transmetalated to give a novel P2L3 cryptand (see scheme). The P[BOND]S bonds behave reversibly, like traditional metal–ligand bonds, suggesting a possible new motif for dynamic covalent chemistry.