Synthesis and Catalysis of Metal Cluster Containing Polyoxometalates

本研究利用双缺位聚氧乙烯醚与银源反应，合成了不同银簇的聚氧乙烯醚。在含银簇的聚氧乙烯醚存在下，各种硅烷选择性地进行水解氧化，高产率地得到相应的硅烷醇。为了开发含金属簇合物的聚氧杂环丁烷酸盐，研究了新型缺位聚氧杂环丁烷酸盐的合成。我们成功地开发了各种二缺位聚氧乙烯酸二价金属盐的合成。虽然多钴在不异构化的情况下包封和取代成二缺聚氧杂环丁烷酸盐被认为是困难的，但是通过二缺聚氧杂环丁烷酸盐的钴盐和所需组分的反应，可以合成含二钴和含四钴的聚氧杂环丁烷酸盐。

In this study, polyoxometalates with various silver cluster have been synthesized by the reaction of dilacunary polyoxometalate and silver sources. In the presence of silver-cluster-containing polyoxometalates, hydrolytic oxidation of various kinds of silanes selectively proceeded, giving the corresponding silanols in high yields. For the purpose of the development of metal-cluster-containing polyoxometalates, syntheses of novel lacunary polyoxometalates have been investigated. We can successfully developed the syntheses of various divalent metal salts of dilacunary polyoxometalates. Although the encapsulation and substitution of multicobalt into dilacunary polyoxometalates without isomerization have been considered to be difficult, by the reaction of a cobalt salt of dilacunary polyoxometalate and required components, di- and tetracobalt-containing polyoxometalates could be synthesized.