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Article Abstract
The quest to delve into high-nuclearity molecular metal-oxo clusters and unravel their reactivity presents a significant challenge in chemistry and materials science. In this work, we synthesized an unprecedented bowknot-like selenotungstates, [CeSeWO(OH)(HO)(mal)] (, Hmal = dl-malic acid) via an assembly strategy. The three building units, including tetravacant Keggin-{SeW}, bivacant Dawson-{SeW}, and trivacant Keggin-{SeW}, were self-assembled by the connection of {W}, independent {SeO} fragments, and seven mutually isolated Ce ions to form the unique asymmetric structure, which was further extended to the bowknot-like dimeric structure and the 1D chain structure by symmetry. Due to the good photoelectric activity, can serve as a highly efficient photocatalyst for the conversion of C-H to C-N bonds by hydroacylation of dialkyl azodicarboxylates, with a broad substrate scope and excellent reusability. This work enriches the assembly mode of POMs and provides a highly efficient photocatalyst.
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| http://dx.doi.org/10.1021/acs.inorgchem.5c01101 | DOI Listing |
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