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Synthesis, structures and applications of electron-rich polyoxometalates

Abstract

Ever since the discovery and development of polyoxometalates (POMs), it has been known that they can exist in electron-rich reduced forms of different archetypes, structural flexibilities and functionalities. There are now reliable synthetic strategies for electron-rich POMs — materials that have unique and potentially useful catalytic, electronic and magnetic properties. This Review covers the synthesis and applications of these reduced species, and also highlights their differences and advantages relative to fully oxidized POMs. More than 200 reduced POM structures are described in this Review, with emphasis placed on how reduction influences POM structure, function and properties.

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Figure 1: Conventional types of electron-rich polyoxometalates.
Figure 2: Synthetic methods for reduced isopolymolybdates.
Figure 3: Synthetic methods for reduced Keggin anions.

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Acknowledgements

The research was funded by the Austrian Science Fund (FWF): M2203 (N.I.G.) and P27534 (A.R.). The authors thank L. Krivosudský and E. Al-Sayed for valuable discussions concerning this work and A. Bijelic for critical proofreading of the manuscript.

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Correspondence to Annette Rompel.

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Gumerova, N., Rompel, A. Synthesis, structures and applications of electron-rich polyoxometalates. Nat Rev Chem 2, 0112 (2018). https://doi.org/10.1038/s41570-018-0112

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