A Coordination Network Featuring Two Distinct Copper(II) Coordination Environments for Highly Selective Acetylene Adsorption.
A Coordination Network Featuring Two Distinct Copper(II) Coordination Environments for Highly Selective Acetylene Adsorption.
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一个配位网络，具有两个不同的铜（II）协调环境，用于高度选择性的乙炔吸附。
DOI：
10.1002/chem.202201188
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发表时间：
2022-09-16
期刊：
影响因子：
--
通讯作者：
Schröder M
中科院分区：
文献类型：
--
作者：
Chong MWS;Argent SP;Moreau F;Trenholme WJF;Morris CG;Lewis W;Easun TL;Schröder M
以商业试剂3-甲酰基-4-羟基苯甲酸（H2 L）和Cu（NO3）2在二甲基甲酰胺（DMF）中反应，制备了二维配位网络{Cu 2 L 2 ⋅（DMF）3（H2O）3} n（1-DMF）单晶。单晶结构显示出两种不同的Cu（II）配位环境，这是由Cu（II）阳离子与连接体上的羧酸根和水杨酸根部分的单独配位引起的，其中1D通道贯穿结构。在与乙醇和四氢呋喃的溶剂交换中表现出灵活性，同时保留了结构的孔隙率和独特的整体连通性。活化材料表现出I型气体吸附行为和950 m2 g-1（N2，77 K）的BET表面积。 值得注意的是，与CO2和C2 Hn烃相比，框架吸附可忽略量的CH 4。它对C2 H2/CH 4和C2 H2/C2 Hn具有优异的选择性，这在分离C2 H2的分离技术中具有适用性。 从商业试剂合成的二维配位网络，并显示两个不同的配位环境的铜羧酸盐和水杨酸配体的部分。合成的网络的溶剂交换显示保留了框架连接性，并具有意想不到的框架灵活性以容纳四氢呋喃。活化的骨架选择性吸附CO2和C2 Hn烃超过CH 4。
Single crystals of 2D coordination network {Cu2 L 2 ⋅ (DMF)3(H2O)3} n (1‐DMF) were prepared by reaction of commercial reagents 3‐formyl‐4‐hydroxybenzoic acid (H2 L) and Cu(NO3)2 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 m2 g−1 (N2, 77 K). Notably, the framework adsorbs negligible quantities of CH4 compared with CO2 and the C2H n hydrocarbons. It exhibits exceptional selectivity for C2H2/CH4 and C2H2/C2H n , which has applicability in separation technologies for the isolation of C2H2. A 2D coordination network was synthesised from commercial reagents and displays two distinct coordination environments of copper to carboxylate and salicylaldehydato moieties of the ligand. Solvent exchange of the synthesized network shows retention of framework connectivity coupled with unanticipated framework flexibility to accommodate tetrahydrofuran. The activated framework selectively adsorbs CO2 and C2H n hydrocarbons over CH4.
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影响因子：
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作者：
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通讯作者：
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