Abstract

The Front Cover shows the open conformer of the 1,4-phenanthroyl derivatized calix[8]arene/Cu(I) system that allows for C−S coupling to occur on the right hand side. On the left, a collapsed conformer of the same system does not allow for efficient catalysis to occur, since no macrocyclic cavity that may host the reactants is present. In the article, experimental and computational mechanistic studies are combined to unveil the origins for the poor catalytic performance in flexible macrocyclic systems with a vast conformational space. Thanks to @MESHICOLOR for the graphic design. More information can be found in the Research Article by M. Podewitz, I. Castillo and co-workers.

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