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      A Zr-added Dawson-type poly(polyoxometalate)

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          Abstract

          An unprecedented Zr-added poly(POM), [H 2N(CH 3) 2] 10H 14[(Zr 2P 2W 16O 61) 3]·7H 2O, has been made under hydrothermal conditions, and as a heterogeneous catalyst, its selective oxidative degradation of a sulfur mustard simulant CEES has further been studied.

          Abstract

          A novel Zr-added trimer, [H 2N(CH 3) 2] 10H 14[(Zr 2P 2W 16O 61) 3]·7H 2O (1), has been made under hydrothermal conditions, and contains the highest number of Zr centers in known Dawson-type poly(POM)s. A remarkable feature of this study is the first discovery of a new type of divacant [α-5,10-P 2W 16O 60] 14− fragment, which assembles with Zr 4+ ions to form a cyclic trimer. Furthermore, 1 as a heterogeneous catalyst exhibits high activity for the selective oxidative degradation of a sulfur mustard simulant CEES.

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          Polyoxometalates: building blocks for functional nanoscale systems.

          Polyoxometalates (POMs) are a subset of metal oxides that represent a diverse range of molecular clusters with an almost unmatched range of physical properties and the ability to form dynamic structures that can range in size from the nano- to the micrometer scale. Herein we present the very latest developments from synthesis to structure and function of POMs. We discuss the possibilities of creating highly sophisticated functional hierarchical systems with multiple, interdependent, functionalities along with a critical analysis that allows the non-specialist to learn the salient features. We propose and present a "periodic table of polyoxometalate building blocks". We also highlight some of the current issues and challenges that need to be addressed to work towards the design of functional systems based upon POM building blocks and look ahead to possible emerging application areas.
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            Polyoxometalate water oxidation catalysts and the production of green fuel.

            In the last five years and currently, research on solar fuels has been intense and no sub-area in this field has been more active than the development of water oxidation catalysts (WOCs). In this timeframe, a new class of molecular water oxidation catalysts based on polyoxometalates have been reported that combine the advantages of homogeneous and heterogeneous catalysts. This review addresses central issues in green energy generation, the challenges in water oxidation catalyst development, and the possible uses of polyoxometalates in green energy science.
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              Recent advances in paramagnetic-TM-substituted polyoxometalates (TM = Mn, Fe, Co, Ni, Cu)

              During the past decade, research into transition-metal-substituted polyoxometalate self-assembly has been greatly developed. This review summarizes the conventional solution syntheses and hydrothermal syntheses of novel substituted polyoxometalates based on the incorporation of paramagnetic transition metals Mn, Fe, Co, Ni, and Cu, with an emphasis on the variety of nuclearities and configurations of encapsulated transition metal cores and the rich architectures of overall polyoxometalates.
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                Author and article information

                Contributors
                Journal
                ICHBD9
                Dalton Transactions
                Dalton Trans.
                Royal Society of Chemistry (RSC)
                1477-9226
                1477-9234
                January 24 2023
                2023
                : 52
                : 4
                : 857-861
                Affiliations
                [1 ]Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
                Article
                10.1039/D2DT03820J
                23d97779-46a6-4974-bdc8-a9f09c1052b6
                © 2023

                http://rsc.li/journals-terms-of-use

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