基于双吡啶双酰胺配体的一种一维钴配位聚合物的合成及性能

Synthesis and property of a new 1D cobalt coordination polymer with the bis(pyridyl)-bis(amide)ligand

在水热条件下以(E)-4,4'-(乙烯-1,2-二基)双-(3-吡啶基)苯甲酰胺(L)和1,3,5-均苯三甲酸(H_(3)BTC)为混合配体设计合成了一种新型配位聚合物[Co(L)_(2)(HBTC)].X射线单晶衍射结构分析表明,该配合物显示出一维链结构,其中HBTC配体的两个羧基采取双(单齿)-螯合配位模式连接Co原子形成一维链,含N配体悬挂在链的两侧.此外,配合物修饰的碳糊电极具有高效的电催化活性,能够有效的催化Cr(Ⅵ)、亚硝酸钾和溴酸钾的还原以及抗坏血酸的氧化.同时标题配合物还可作为潜在的光催化材料用于降解有机染料刚果红.

A new coordination polymer[Co(L)_(2)(HBTC)]was designed and synthesized under the hydrothermal condition using(E)-4,4'-(ethene-1,2-diyl)bis[N-(pyridin-3-yl)benzamide](L)and benzene-1,3,5-tricarboxylic acid(H_(3)BTC)as the mixed ligands.X-ray single crystal diffraction structural analysis showed that the polymer exhibited a one-dimensional(1D)chained structure.Each HBTC anion bridged two Co(Ⅱ)ions to form a 1D chain and the N-containing ligand was suspended on both sides of the chain.In addition,the bulk-modified CPE of the title polymer had efficient electrocatalytic activities,which can effectively catalyze the reduction of Cr(Ⅵ),potassium nitrite,potassium bromate and the oxidation of ascorbic acid.The title polymer can also be used as a potential photocatalytic material for the degradation of organic dye congo red.