A Novel Ruthenium-Decorating Polyoxomolybdate Cs₃Na₆H[MoVI14RuIV₂O50(OH)₂]·24H₂O: An Active Heterogeneous Oxidation Catalyst for Alcohols

Rong Wan; Qiaofei Xu; Mengdan Han; Pengtao Ma; Chao Zhang; Jingyang Niu; Jingping Wang

doi:10.3390/ma11020178

A Novel Ruthenium-Decorating Polyoxomolybdate Cs₃Na₆H[Mo^VI₁₄Ru^IV₂O₅₀(OH)₂]·24H₂O: An Active Heterogeneous Oxidation Catalyst for Alcohols

Materials (Basel). 2018 Jan 23;11(2):178. doi: 10.3390/ma11020178.

Authors

Rong Wan¹, Qiaofei Xu², Mengdan Han³, Pengtao Ma⁴, Chao Zhang⁵, Jingyang Niu⁶, Jingping Wang⁷

Affiliations

¹ Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China. wanrong1992@163.com.
² Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China. xqf199408@163.com.
³ Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China. m15993371075@163.com.
⁴ Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China. mpt@henu.edu.cn.
⁵ Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China. super7cc@gmail.com.
⁶ Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China. jyniu@henu.edu.cn.
⁷ Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China. jpwang@henu.edu.cn.

Abstract

The first example of wholly inorganic ruthenium-containing polyoxomolybdate Cs₃Na₆H[Mo^VI₁₄Ru^IV₂O₅₀(OH)₂]·24H₂O (1) was isolated and systematically characterized by element analysis, infrared spectroscopy (IR), thermogravimetric analyses (TGA), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX) and single-crystal X-ray diffraction. Compound 1 is composed of an unprecedented {Mo₁₄}-type isopolymolybdate with a di-ruthenium core precisely encapsulated in its center, exhibiting a three-tiered ladder-like structure. The title compound can act as an efficient heterogeneous catalyst in the transformation of 1-phenylethanol to acetophenone. This catalyst is also capable of being recycled and reused for at least ten cycles with its activity being retained under the optimal conditions.

Keywords: alcohols; catalyst; polyoxomolybdate; ruthenium.