Abstract Two new molybdovanadate compounds, Na[NH4]2[Na(C4H9NO)]2[VMo7O26] (1), [C4H9NO]5[VMo7O26]·2H2O (2) have been successfully isolated by conventional self-assembly reactions. Compound 1 adopts a three-dimensional (3D) structure, in which the [VMo7O26]5− clusters are bridged by Na+ ions and {Na(C4H9NO)} units. In compound 2, the [VMo7O26]5− anions, protonated [C4H9NO]+ cations, and lattice water molecules are joined together via hydrogen bond interactions to form a 3D supramolecular framework. Besides, 1- and 2-modified electrodes show good electrochemical sensing performance towards the determination of ascorbic acid.

中文翻译：

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基于 [VMo7O26]5- 钼钒酸盐簇的 3D 框架显示抗坏血酸的电化学传感

摘要 两种新型钼钒酸盐化合物Na[NH4]2[Na(C4H9NO)]2[VMo7O26](1)、[C4H9NO]5[VMo7O26]·2H2O(2)已通过常规自组装反应成功分离。化合物 1 采用三维 (3D) 结构，其中 [VMo7O26]5- 簇由 Na+ 离子和 {Na(C4H9NO)} 单元桥接。在化合物 2 中，[VMo7O26]5- 阴离子、质子化 [C4H9NO]+ 阳离子和晶格水分子通过氢键相互作用连接在一起，形成 3D 超分子框架。此外，1-和2-修饰电极对抗坏血酸的测定显示出良好的电化学传感性能。