An organic–inorganic hybrid nanoscale phosphotungstate with reactive oxygen species catalytic ability

Abstract

An organic-inorganic hybrid polyoxometalate (POM) based on bi-nuclear copper complexes and Dawson-type phosphotungstate (POT) [CuL(H₂O)][CuL]₂[P₂W₁₈O₆₂]·3H₂O (abbreviated as CPW) (L = 2-(1H-pyrazol-3-yl)pyridine) was synthesized and structurally characterized by IR spectrum, and single-crystal X-ray diffraction. Structural analysis indicated that CPW is nanoscale molecule and extends into a two-dimensional layer, in which three bi-nuclear copper complexes are substituted at different sites of Dawson-type POT and joined adjacent POT fragments together. Notably, CPW can efficiently catalyze the production of reactive oxygen species.

Keywords:

• Phosphotungstate
• bi-nuclear copper complex
• reactive oxygen species
• catalyst
• Dawson-type cluster

Disclosure statement

No potential conflict of interest was reported by authors.

Additional information

Funding

This work was supported by the Natural Science Foundation of China (Grants 21573056), Shanxi Province Science Foundation for Youths (Grants 201901D211453), the Research Foundation for Advanced Talents of Shanxi Province (1800008001), the Research Foundation of Taiyuan Institute of Technology (03000352), and the Research Foundation of the Chinese State Key Laboratory of Coordination Chemistry (SKLCC1912).