Synthesis and Characterization of 6-Ti-Substituted Polyoxomolybdate with High Catalytic Activity for Sulfide Oxidation.

Inorg Chem

Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, Henan, P. R. China.

Published: April 2024


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Article Abstract

A 6-Ti-substituted polyoxometalate, (NH)CsNaH[Cs@(TiGeMoO)]·34HO (), was synthesized by reacting (NH)MoO·4HO, GeO, and TiOSO through the conventional aqueous method. Polyanion is composed of three {TiGeMo} segments linked by Ti-O-Ti linkages and shows a trefoil-shaped structure. Furthermore, one Cs cation is encapsulated in the cavity of . Notably, it possesses the highest number of Ti centers among the reported polyoxomolybdates. In addition, serving as a high-efficiency heterogeneous catalyst, enables the conversion of methyl phenyl sulfide within 20 min, yielding 96.4% of the corresponding sulfoxide with good recyclability.

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http://dx.doi.org/10.1021/acs.inorgchem.3c04628DOI Listing

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