Zhang Guiyang, Fei Honghan
School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, P. R. China.
Chem Commun (Camb). 2017 Apr 6;53(29):4156-4159. doi: 10.1039/c7cc01461a.
A rare example of a robust, sulfonate-based metal-organic framework (MOF) with a prototypical primitive-cubic topology has been successfully synthesized. Importantly, one-fourth of the metal-ligand connectivities residing in the MOF are missing, resulting in the appearance of coordinatively accessible Cu sites and pendant sulfonate groups. This unprecedented crystal irregularity phenomenon of MOFs substantially enhances their affinity towards water molecules, thus increasing the proton conductivity by two orders of magnitude.
一种具有典型原始立方拓扑结构的坚固的基于磺酸盐的金属有机框架（MOF）的罕见实例已成功合成。重要的是，MOF中四分之一的金属-配体连接性缺失，导致出现配位可及的铜位点和悬垂的磺酸盐基团。MOF这种前所未有的晶体不规则现象极大地增强了它们对水分子的亲和力，从而使质子传导率提高了两个数量级。
