A Nanosized Gly‐Decorated Praseodymium‐Stabilized Selenotungstate Cluster: Synthesis, Structure, and Oxidation Catalysis. Issue 18 (14th August 2017)

• Record Type: Journal Article
• Authors: Yang, Ling; Li, Li; Guo, Jipeng; Liu, Qisen; Ma, Pengtao; Niu, Jingyang; Wang, Jingping
• Is Part Of: Chemistry, an Asian journal. Volume 12:Issue 18(2017)
• Page Start: 2441
• Page End: 2446
• Publication Date: 2017-08-14
• Subjects: cyclooctene -- epoxidation -- heteroatoms -- peroxides -- polyoxometalates; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/asia.201700801
• Languages: English
• ISSNs: 1861-4728

Abstract

Abstract: A flexible one‐pot strategy with pyramidal Se IV 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. Abstract : Going to POT? An unprecedented praseodymium‐containing selenotungstate, Cs2 Na4 H12 [{Pr3 (H2 O)10 [Se2 W22 O76 (gly)2 ]}2 (Se2 W7 O30 H2 )]⋅ 25 H2 O (1 ), has been obtained by using a one‐pot strategy. The catalytic performance of1 for the epoxidation of alkenes with hydrogen peroxide was also investigated, and the results suggested that1 showed good catalytic performance for the epoxidation of cyclooctene under mild reaction conditions (see figure).