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- W2811656005 abstract "Unsupported non-bridged uranium-carbon double bonds have long been sought after in actinide chemistry as fundamental synthetic targets in the study of actinide-ligand multiple bonding. Here we report that, utilizing Ih(7)-C80 fullerenes as nanocontainers, a diuranium carbide cluster, U=C=U, has been encapsulated and stabilized in the form of UCU@Ih(7)-C80. This endohedral fullerene was prepared utilizing the Krätschmer-Huffman arc discharge method, and was then co-crystallized with nickel(II) octaethylporphyrin (NiII-OEP) to produce UCU@Ih(7)-C80·[NiII-OEP] as single crystals. X-ray diffraction analysis reveals a cage-stabilized, carbide-bridged, bent UCU cluster with unexpectedly short uranium-carbon distances (2.03 Å) indicative of covalent U=C double-bond character. The quantum-chemical results suggest that both U atoms in the UCU unit have formal oxidation state of +5. The structural features of UCU@Ih(7)-C80 and the covalent nature of the U(f1)=C double bonds were further affirmed through various spectroscopic and theoretical analyses." @default.
- W2811656005 created "2018-07-19" @default.
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- W2811656005 date "2018-07-16" @default.
- W2811656005 modified "2023-10-15" @default.
- W2811656005 title "A diuranium carbide cluster stabilized inside a C80 fullerene cage" @default.
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- W2811656005 doi "https://doi.org/10.1038/s41467-018-05210-8" @default.
- W2811656005 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6048043" @default.
- W2811656005 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30013067" @default.
- W2811656005 hasPublicationYear "2018" @default.
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