Thiadiazole-functional porous metal–organic framework as luminescent probe for Cd2+

The solvothermal reaction of 4,4′-(benzothiadiazole-4,7-diyl)dibenzoate and Zn(II) leads to the generation of an interdigitating three-dimensional (2D + 2D → 3D) porous metal–organic framework, which displays a highly selective fluorescent enhancement with Cd2+ amongst other metal ions.