Synthesis, Structure, and Proton Conductivities of a Mg(II)-based Coordination Polymer Composed of an Exotic Oxidized Ligand

초록

A Mg(II)-based coordination polymer was synthesized by a solvothermal reaction between Mg2+ and 2,5-dimercaptoterephthalic acid (H(4)dmtp) in N,N-diethylformamide (DEF). The thiol (SH) groups in the H(4)dmtp ligand were oxidized to form the sulfinato (SO2-) groups, which were structurally stabilized through coordination to the Mg2+ centers. The temperature-dependent proton conductivities exhibited relatively low activation energy (0.19 eV) for proton transfer, suggesting that the hydrogen-bonded networks formed by the water molecules and the sulfinato oxygen atoms produced efficient proton-hopping pathways.

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