keggin型多金属氧酸盐结构

keggin型多金属氧酸盐结构
English Answer.
Keggin-type polyoxometalates (POMs) are a class of inorganic cluster compounds with a general formula of
[XM12O40]n-, where X is a heteroatom (typically P, Si, Ge, As, or B) and M is a transition metal (typically Mo or W). The Keggin structure consists of a central XO4 tetrahedron surrounded by 12 octahedrally coordinated MO6 units, which are further connected by four bridging oxygen atoms to form a cage-like structure. The overall charge of the POM is determined by the oxidation state of the metal ions and the number of protonated oxygen atoms. The Keggin structure is named after the chemist John F. Keggin, who first described the structure in 1934.
Keggin-type POMs exhibit a wide range of interesting properties, including high thermal stability, redox activity, and catalytic activity. They have been extensively studied for their potential applications in
various fields, such as catalysis, materials science, and medicine.
The Keggin structure is a versatile platform for the incorporation of different heteroatoms and transition metals, which allows for the tuning of their properties and the development of new functional materials. Keggin-type POMs have been shown to exhibit a variety of catalytic activities, including acid catalysis, oxidation catalysis, and photocatalysis. They have also been used as building blocks for the construction of more complex structures, such as metal-organic frameworks (MOFs) and nanoparticles.
中文回答：
开金型多金属氧酸盐结构。

开金型多金属氧酸盐（POMs）是一类无机簇化合物，其通式为[XM12O40]n-，其中X为杂原子（通常为P、Si、Ge、As或B），M
为过渡金属（通常为Mo或W）。

开金结构由一个中心XO4四面体组成，该四面体周围有12个八面体配位的MO6单元，这些单元通过四个桥接氧原子进一步连接形成笼状结构。

POM的总电荷由金属离子
的氧化态和质子化氧原子的数量决定。

开金结构以化学家约翰·F·开金的名字命名，他于1934年首次描述了该结构。

开金型POMs表现出广泛的有趣性质，包括高热稳定性、氧化还原活性和催化活性。

它们已因其在催化、材料科学和医学等各个领域的潜在应用而被广泛研究。

开金结构是一个通用的平台，可用于掺入不同的杂原子和过渡金属，这允许调整其性质并开发新的功能材料。

开金型POMs已显示出各种催化活性，包括酸催化、氧化催化和光催化。

它们还被用作构建更复杂结构的构件，例如金属有机骨架（MOFs）和纳米颗粒。