Photochromic hybrid materials of cucurbituril and polyoxometalates as photocatalysts under visible light

Abstract

Two isostructural organic–inorganic hybrid solid materials based on cucurbituril derivatives and polyoxometalates, {[K2(H2O)2Na2(H2O)2Na2(H2O)6](P2W18O62)(Me10Q5)2}·∼7H2O (1) and {[Rb2(H2O)2Na2(H2O)Na2(H2O)4](P2W18O62)(Me10Q5)2}·∼8H2O (2), which exhibit reversible photochromic properties as well as excellent photocatalytic activities toward the degradation of methyl orange (MO) and rhodamine-B (RB) under visible light irradiation, are reported.