A two-fold interpenetrated zinc–organic framework: luminescence detection of CrO 4 2− /Cr 2 O 7 2− and chemical conversion of CO 2

A novel two-fold interpenetrated 3D framework can adsorb CO 2 and serve as an efficient and recyclable catalyst for the conversion of CO 2 with epoxides. Furthermore, it can also act as a sensitive and recyclable luminescent probe to detect CrO 4 2− /Cr 2 O 7 2− among many anions in aqueous solution.