Layered supramolecular network of cyclodextrin triplets with azobenzene-grafting polyoxometalate for dye degradation and partner-enhancement.

A tri-β-cyclodextrin-armed host compound is synthesized to construct layered supramolecular network co-assembly with a doubly azobenzene-decorated polyoxometalate cluster through host-guest interaction. The porous hybrid assembly displays automatic degradation of selective dyes and the acceleration of the partner dye in both water and dichloromethane in the air.