A water stable layered Tb(<scp>iii</scp>) polycarboxylate with high proton conductivity over 10⁻² S cm⁻¹ in a wide temperature range

Abstract

An unprecedented Tb(iii) polycarboxylate, {[Tb4(TTHA)2(H2O)4]·7H2O}n (1), has been synthesized. It possesses an efficient proton transfer pathway formed by water molecules and carboxyl groups, which exhibits proton conductivity over 10-2 S cm-1 at 295-358 K and 98% relative humidity.