Highly Anisotropic and Water Molecule-Dependent Proton Conductivity in a 2D Homochiral Copper(II) Metal–Organic Framework
作者:Rong Li、Shuai-Hua Wang、Xu-Xing Chen、Jian Lu、Zhi-Hua Fu、Yan Li、Gang Xu、Fa-Kun Zheng、Guo-Cong Guo
DOI:10.1021/acs.chemmater.6b05497
日期:2017.3.14
elucidate their conduction mechanism and guide the unidirectional crystal growth to improve the performance of electrolyte materials. Herein, we report a highly anisotropic proton-conductive 2D metal–organic framework (MOF) [Cu2(Htzehp)2(4,4′-bipy)]·3H2O (1·3H2O, H3tzehp = N-[2-(1H-tetrazol-5-yl)ethyl]-l-hydroxyproline) with definite crystal structures showing single-crystal to single-crystal transformation
对单晶质子电导率的研究对于阐明其传导机理和指导单向晶体生长以改善电解质材料的性能至关重要。在此,我们报道了一种高度各向异性的质子传导二维金属有机骨架(MOF)[Cu 2(Htzehp)2(4,4'-bipy)]·3H 2 O(1·3H 2 O,H 3 tzehp = N -[2-(2-(1 H-四唑-5-基)乙基] -1-羟基脯氨酸)具有确定的晶体结构,显示无水物(1)和三水合物(1·3H 2 O之间的单晶至单晶转变))阶段。氢键链由明确的晶格水分子和Htzehp 2–配体阵列内2D层间空间内沿结晶a轴([100]方向)在1·3H 2 O中的羟基官能团组成。分别沿[100]和[010]方向获得了温度和湿度相关的质子传导率。在1·3H 2 O的单晶中,σ[100] /σ[010]的各向异性质子传导率高达2个数量级。的1.43×10的最高的质子传导性-3小号厘米-1的1·3H 2 ö在报道的2D