Abstract:Both natural enzymatic systems and synthetic porous material catalysts utilize well-defined and uniform channels to dictate reaction selectivities on the basis of size or shape. Mimicry of this design element in homogeneous systems is generally difficult owing to the flexibility inherent to most small molecular species. Herein, we report the synthesis of a tripodal ligand scaffold which orients a narrow and rigid cavity atop accessible metal coordination space. The permanent void is formed through a macrocycli… Show more
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