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Published on: October 16, 2017
A Nanosized Gly-Decorated Praseodymium-Stabilized Selenotungstate Cluster: Synthesis, Structure, and Oxidation
Ling Yang1, Li Li1, Jipeng Guo1
1Key Laboratory of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan, 475004, P. R. China.
Abstract:
A flexible one-pot strategy with pyramidal SeIV heteroatoms was employed for the assembly of the praseodymium-containing gly-decorated polyoxotungstate [{Pr3 (H2 O)10 [Se2 W22 O76 (gly)2 ]}2 (Se2 W7 O30 H2 )]18- (1 a), which is constructed from one {Se2 W7 O30 H2 } unit and two identical {Pr3 (H2 O)10 [Se2 W22 O76 (gly)2 ]} units. Furthermore, the catalytic performance of Cs2 Na4 H12 [{Pr3 (H2 O)10 [Se2 W22 O76 (gly)2 ]}2 (Se2 W7 O30 H2 )]⋅25 H2 O (1) for alkene epoxidation with hydrogen peroxide was investigated under mild reaction conditions, and the experimental results suggested that compound 1 exhibits good catalytic performance for the epoxidation of cyclooctene.
