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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Solvothermal syntheses and structure of a new polyoxomolybdate functionalized with carboxyphosphonate
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Solvothermal syntheses and structure of a new polyoxomolybdate functionalized with carboxyphosphonate

机译：羧基膦酸酯官能化的新型聚氧钼酸酯的溶剂热合成和结构

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摘要

A new functionalized polyoxomolybdate [(HOOCC_5H_9NCH_2PO_3)_2Mo_5O_15]~4- (1) was synthesized by solvothermal reaction at 120 °C and structurally characterized by X-ray single-crystal diffraction, X-ray powder diffraction as well as with infrared spectroscopy, elemental analysis, and thermogravimetric analysis. The title polyoxoanion consists of a ring of five distorted MoO_6 octahedra linked through four edge-sharing and one corner-sharing junctions. Two pending carboxyphosphonate ligands are attached on opposite sides of the ring by the two PO_3 groups. As a result the two dangling arms with their terminal carboxylate groups protrude away from the {Mo_5O_15} framework in diametrically opposed directions. Each Mo_5-ring is further connected to adjacent Mo_5-ring through hydrogen bonds, which consist in the protonated nitrogen atoms, the carboxyl oxygen atoms from L_3- ligands and oxygen atoms from {Mo_5O_15} cluster to form a 2D framework structure.
机译：通过120℃的溶剂热反应合成了一种新的官能化聚氧钼酸盐[（HOOCC_5H_9NCH_2PO_3）_2Mo_5O_15]〜（4），并通过X射线单晶衍射，X射线粉末衍射以及红外光谱，元素学表征分析和热重分析。标题多氧阴离子由五个扭曲的MoO_6八面体的环组成，这些环通过四个边缘共享和一个角共享连接处相连。两个未决的羧基膦酸酯配体通过两个PO_3基团连接在环的相对侧。结果，两个带有末端羧酸酯基团的悬空臂沿完全相反的方向从{Mo_5O_15}骨架中伸出。每个Mo_5-环还通过氢键与相邻的Mo_5-环连接，所述氢键由质子化的氮原子，来自L_3-配体的羧基氧原子和来自{Mo_5O_15}簇的氧原子组成，以形成2D骨架结构。

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