Fig. 1: Noncovalent interaction in catalysis.

A Noncovalent interactions of ammonium ion with multidentate oxygen-based host in catalysis. B Photoinduced C–H bond alkylation of PEGs with acrylates in this work.

A Noncovalent interactions of ammonium ion with multidentate oxygen-based host in catalysis. B Photoinduced C–H bond alkylation of PEGs with acrylates in this work.