biostudies-literatureUnknown9(28)Ma YIn 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 RSC advances16130-16135https://www.ebi.ac.uk/biostudies/studies/S-EPMC9064370biostudies-literatureHigh proton conductivity behavior in a 2D metal sulfite constructed from a histidine ligand.PMC9064370Yin YZheng ZYang YXiu ZMa YHuang LWang XBi YfalseHigh proton conductivity behavior in a 2D metal sulfite constructed from a histidine ligand.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 2019-01-01T00:00:00Z2019 May2025-04-25T17:32:06.9Z2025-04-06T05:51:50.294ZS-EPMC90643703552140610.1039/c9ra01584a