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Updated: Sep 24, 2025

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
High proton conductivity behavior in a 2D metal sulfite constructed from a histidine ligand
Yike Ma1, Liangliang Huang1, Zhijia Xiu1
1School of Chemistry and Material Science, Liaoning Shihua University Fushun 113001 Liaoning P. R. China huangll@lnpu.edu.cn biyanfeng@lnpu.edu.cn.
Abstract:
In the presence of the amino acid histidine, an inorganic-organic hybrid metal sulfite, Zn2(SO3)2(C6N3O2H9)2·H2O (1), has been prepared under hydrothermal conditions. Single-crystal X-ray diffraction analysis reveals that 1 shows a 2D layer framework built up from a classical second building unit (S4R), and bridged histidine molecule. Notably, it is the first report of a metal sulfite in the presence of an amino acid molecule. A 1D H-bonding array can be constructed by the H-bonding interaction between histidine molecules and sulfite groups. Moreover, a new function of metal sulfite for proton conduction was investigated by alternating-current impedance analysis. The results demonstrate that compound 1 shows a high proton conductivity of approximately 10-3 S cm-1 at 348 K and 98% relative humidity.
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