Metallocavitands: an emerging class of functional multimetallic host molecules

Chemical Society Reviews Pub Date: 2012-11-27 DOI: 10.1039/C2CS35337G

Abstract

The study of traditional organic cavitands has been central in the development of supramolecular chemistry. As the field of supramolecular chemistry matures, a new class of cavitand, the metallocavitand, is quietly emerging. No central theme currently exists to unify these relatable supramolecules due to the structural diversity of metallocavitands. To provide a concrete foundation for future metallocavitand research, we define metallocavitands here as multimetallic complexes where metal coordination is necessary for cavity formation. This tutorial review highlights synthetic routes based on self-assembly and macrocycle-templating strategies to isolate bowl-shaped metallocavitands, and highlights interesting supramolecular phenomena observed with metallocavitands such as dimerization, host–guest encapsulation, catalysis, unique regioselective reactivity, and enantioselective guest recognition.

Graphical abstract: Metallocavitands: an emerging class of functional multimetallic host molecules
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