Lv Xiaoxia, Li Liangjun, Sun Xiaoming, Zhang Hongyu, Cai Jinjun, Wang Chao, Tang Sifu, Zhao Xuebo
Laboratory for Hydrogen Storage & Novel Nanoporous Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Science, Qingdao 266101 (China), Fax: (+86) 0532-80662728.
Chem Asian J. 2014 Mar;9(3):901-7. doi: 10.1002/asia.201301327. Epub 2014 Jan 21.
The microporous coordination polymer [Co(H2 L)(bipy)0.5 ]⋅2 H2 O (1, bipy=4,4'-bipyridine) was synthesized on the basis of the V-shaped flexible diphosphonate ligand (2,4,6-trimethyl-1,3-phenylene)bis(methylene)diphosphonic acid (H4 L) and the auxiliary bipy ligand under hydrothermal conditions. The structure of this compound was characterized by single-crystal X-ray diffraction. By joining the diphosphonate ligands and bipy through tetrahedral [CoO3 N] clusters, a 2D square grid layered network was formed. Further stacking of these layers on the basis of π-π interactions resulted in a pseudo-3D microporous network with 1D channels running through the a axis. Gas sorption studies for CO2 , H2 , CH4 , N2 , and O2 on this coordination polymer were performed, and the results revealed interesting dynamic and hysteresis sorption behavior toward H2 at low temperature.
基于V形柔性二膦酸酯配体（2,4,6-三甲基-1,3-亚苯基）双（亚甲基）二膦酸（H4L）和辅助联吡啶配体，在水热条件下合成了微孔配位聚合物[Co(H2L)(bipy)0.5]⋅2 H2O（1，bipy = 4,4'-联吡啶）。通过单晶X射线衍射对该化合物的结构进行了表征。通过四面体[CoO3N]簇连接二膦酸酯配体和联吡啶，形成了二维方形网格层状网络。这些层基于π-π相互作用进一步堆叠，形成了具有贯穿a轴的一维通道的准三维微孔网络。对该配位聚合物进行了CO2、H2、CH4、N2和O2的气体吸附研究，结果表明在低温下对H2具有有趣的动态和滞后吸附行为。
