A tetranuclear copper cluster-based MOF with sulfonate–carboxylate ligands exhibiting high proton conduction properties†
Abstract
A tetranuclear copper cluster-based MOF with sulfonate–carboxylate ligands has been synthesized. It possesses one-dimensional irregular channels lined with sulfonate, carboxylate, and DMF molecules, which show a high proton conductivity of 7.4 × 10−4 S cm−1 at 95 °C and 95% relative humidity.