A multi-responsive luminescent sensor based on a stable Eu(iii) metal–organic framework for sensing Fe3+, MnO4−, and Cr2O72−in aqueous solutions

A stable benzothiadiazole-based Eu( iii ) metal–organic framework with cco topology has been successfully constructed, and represents the multifunctional fluorescence sensor toward Fe 3+ , MnO 4 − and Cr 2 O 7 2− in aqueous solutions.