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Diamond‐Shaped [Ag 4 ] 4+ Cluster Encapsulated by Silicotungstate Ligands: Synthesis and Catalysis of Hydrolytic Oxidation of Silanes
Author(s) -
Kikukawa Yuji,
Kuroda Yoshiyuki,
Yamaguchi Kazuya,
Mizuno Noritaka
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201108372
Subject(s) - silanes , chemistry , hydrolysis , polyoxometalate , catalysis , polymer chemistry , organic chemistry , silane
An Ag 4 diamond is encapsulated by silicotungstate ligands in TBA 8 [Ag 4 (DMSO) 2 (γ‐H 2 SiW 10 O 36 ) 2 ] ⋅ 2 DMSO ⋅ 2 H 2 O ( Ag4 ; DMSO=dimethyl sulfoxide, TBA=tetra‐ n ‐butylammonium), which was obtained by reaction of TBA 4 H 4 [γ‐SiW 10 O 36 ] 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 %).