Photochromic inorganic–organic hybrid: a new approach for switchable photoluminescence in the solid state and partial photochromic phenomenon

Abstract
A photochromic inorganic–organic hybrid based on in situ generated MV2+ cation (MV2+ = methyl viologen = N,N′-dimethyl-4,4′-bipyridinium) has been obtained, in which a vagarious partial photochromic phenomenon together with its photoluminescence modulation properties are reported for the first time in the inorganic–organic hybrids.