Chong Magdalene W S, Argent Stephen P, Moreau Florian, Trenholme William J F, Morris Christopher G, Lewis William, Easun Timothy L, Schröder Martin
School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
Chemistry. 2022 Sep 16;28(52):e202201188. doi: 10.1002/chem.202201188. Epub 2022 Jul 28.
Single crystals of 2D coordination network {Cu L ⋅ (DMF) (H O) } (1-DMF) were prepared by reaction of commercial reagents 3-formyl-4-hydroxybenzoic acid (H L) and Cu(NO ) in dimethylformamide (DMF). The single-crystal structure shows two distinct Cu(II) coordination environments arising from the separate coordination of Cu(II) cations to the carboxylate and salicylaldehydato moieties on the linker, with 1D channels running through the structure. Flexibility is exhibited on solvent exchange with ethanol and tetrahydrofuran, while porosity and the unique overall connectivity of the structure are retained. The activated material exhibits type I gas sorption behaviour and a BET surface area of 950 m g (N , 77 K). Notably, the framework adsorbs negligible quantities of CH compared with CO and the C H hydrocarbons. It exhibits exceptional selectivity for C H /CH and C H /C H , which has applicability in separation technologies for the isolation of C H .
通过商业试剂3-甲酰基-4-羟基苯甲酸（H₂L）和硝酸铜在二甲基甲酰胺（DMF）中反应制备了二维配位网络{Cu L ⋅(DMF)(H₂O)} (1-DMF)的单晶。单晶结构显示出两种不同的Cu(II)配位环境，这是由于Cu(II)阳离子分别与连接体上的羧酸盐和水杨醛肟部分配位产生的，一维通道贯穿整个结构。在与乙醇和四氢呋喃进行溶剂交换时表现出灵活性，同时保留了结构的孔隙率和独特的整体连通性。活化后的材料表现出I型气体吸附行为，在77K下对氮气的BET表面积为950 m² g⁻¹。值得注意的是，与CO和C₂H₂等碳氢化合物相比，该骨架对CH₄的吸附量可忽略不计。它对C₂H₂/CH₄和C₂H₂/C₂H₄表现出优异的选择性，这在用于分离C₂H₂的分离技术中具有适用性。
