Multifunctional luminescent Zn(ii)-based metal-organic framework for high proton-conductivity and detection of Cr3+ ions in the presence of mixed metal ions.

A luminescent MOF with rectangular channels was synthesized and characterized. It is capable of showing a high proton conductivity up to 0.95 × 10-2 S cm-1 at 60 °C and 97% RH, and sensing metal ions (particularly Cr3+ ions), through fluorescence quenching in presence of mixed metal ions.