Entrapment of ferrocenes within supramolecular, deep-cavity resorcin[4]arenes

Abstract
Using a template-based method to molecular self-assembly, the ability of ferrocene (FcH) and two of its acetylated derivatives [FcAc, 1,1′-Fc(Ac)2] to induce formation of a supramolecular deep cavity based upon C-methylcalix[4]resorcinarene 1 and 4,4′-bipyridine 2, 1·2(2), 3, is revealed; equatorial inclusion of 1,1′-Fc(Ac)2 within 3 promotes a change in conformation of the guest.

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