多酸导向的间苯二酚杯[4]芳烃[Co8]配位笼的组装及电化学性质 |
Polyoxometalate-directing calix[4]resorcinarene-based giant [Co8] coordination cage: Self-assembly and electrochemical performance |
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摘要: 基于多金属氧酸盐(POM)的超分子配位笼的设计和组装引起了广泛的研究兴趣,但在合成过程中仍然存在挑战。本文中,我们报道了一例基于POM-杯芳烃的大型[Co8]配位笼[Co8(MTR4A)6Cl8](α-SiW12O40)2·30DMF·74EtOH (cage-1),该配位笼由6个碗状间苯二酚杯[4]芳烃(MTR4A)分子、8个Co(Ⅱ)阳离子、2个α-SiW12O404-抗衡阴离子和8个Cl-阴离子组装而成。值得注意的是,α-SiW12O404-阴离子通过氢键夹在层与层之间,形成一个三维超分子结构。此外,作为锂离子电池的负极材料,cage-1表现出良好的锂离子存储能力。cage-1也能够实现对亚硝酸盐(NO2-)的还原和抗坏血酸(AA)的氧化,是一种具有高活性的双功能催化剂。 |
关键词: 配位笼 间苯二酚杯[4]芳烃 多酸 电化学性质 |
基金项目: 山西省自然科学基金(No.202103021223002)、山西省高等学校科技创新项目(No.2021L578)和太原学院博士科研启动基金资助。 |
Abstract: Polyoxometalate(POM)-based supramolecular coordination cages have aroused wide interest in terms of their design and fabrication, however, it still be challenging. Herein, we report a POM-calixarene-based giant[Co8] coordination cage,[Co8(MTR4A)6Cl8](α-SiW12O40)2·30DMF·74EtOH (cage-1), assembled with six bowl-shaped calix[4]resorcinarene(MTR4A) molecules, eight Co (Ⅱ) cations, two α-SiW12O404- counter anions, and eight Cl- anions. Remarkably, α-SiW12O404- anions were sandwiched between layers via hydrogen-bonded to form a 3D supramolecular architecture. Moreover, cage-1 showed a good lithium-ion storage capacity as an anode material in lithium-ion batteries (LIBs). Furthermore, it was shown to be a highly active bifunctional electrocatalytic performance for reducing nitrite (NO2-) and oxidizing ascorbic acid (AA). |
Keywords: coordination cages calix[4]resorcinarene polyoxometalate electrocatalytic property |
投稿时间:2023-03-15 修订日期:2023-07-08 |
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郭婷婷,安燕燕,赵丹,闫娟枝.多酸导向的间苯二酚杯[4]芳烃[Co8]配位笼的组装及电化学性质[J].无机化学学报,2023,39(9):1791-1799. |
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Support information: 相关附件: 230082_230082-Supporting_Information.doc |
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