Published in

Beilstein-Institut, Beilstein Journal of Organic Chemistry, (15), p. 2767-2773, 2019

DOI: 10.3762/bjoc.15.268

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A chiral self-sorting photoresponsive coordination cage based on overcrowded alkenes

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

In recent years, increasing efforts have been devoted to designing new functional stimuli-responsive supramolecular assemblies. Here, we present three isomeric supramolecular coordination complexes consisting of a Pd2L4 stoichiometry. As shown by NMR, CD and X-ray studies, as well as DFT calculations, these complexes form cage-like structures by chiral self-sorting. Photochromic ligands derived from first generation molecular motors enable light-driven interconversion between the three isomers. Two of the isomers were able to form host–guest complexes opening up new prospects toward stimuli-controlled substrate binding and release.