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Dr. Yuji Kikukawa, Dr. Yoshiyuki Kuroda, Dr. Kazuya Yamaguchi and Prof. Dr. Noritaka Mizuno Diamond-Shaped [Ag4]4+ Cluster Encapsulated by Silicotungstate Ligands: Synthesis and Catalysis of Hydrolytic Oxidation of Silanes Angewandte Chemie International Edition 51

Article first published online: 8 DEC 2011 | DOI: 10.1002/anie.201108372

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An Ag4diamond is encapsulated by silicotungstate ligands in TBA8[Ag4(DMSO)2(γ-H2SiW10O36)2]2 DMSO2 H2O (Ag4; DMSO=dimethyl sulfoxide, TBA=tetra-n-butylammonium), which was obtained by reaction of TBA4H4[γ-SiW10O36] with AgOAc in an organic medium. Polyoxometalate Ag4 (see picture) selectively catalyzes hydrolytic oxidation of various silanes to the corresponding silanols in high yields (72–96 %).

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