Syntheses and reactivities of strained fused-ring metallaaromatics containing planar eleven-carbon chains

Binbin Xu, Wei Mao, Zhengyu Lu, Yuanting Cai, Dafa Chen () and Haiping Xia ()
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Binbin Xu: Southern University of Science and Technology
Wei Mao: Southern University of Science and Technology
Zhengyu Lu: Southern University of Science and Technology
Yuanting Cai: Southern University of Science and Technology
Dafa Chen: Southern University of Science and Technology
Haiping Xia: Southern University of Science and Technology

Nature Communications, 2024, vol. 15, issue 1, 1-8

Abstract: Abstract Carbolong complexes are one of the primary types of metallaaromatics, and they include metallapentalynes and metallapentalenes. A series of 7C-10C and 12C-carbolong complexes with planar ligand skeletons respectively containing 7-10 and 12 carbon atoms in their backbones, have been previously reported. Herein, two classes of strained substances, metallabenzyne-fused metallapentalenes and metallabenzene-fused metallapentalynes, were prepared, both representing 11C-carbolong complexes with a planar carbon-chain ligand. Furthermore, the former type is also the carbolong derivatives containing a metallabenzyne skeleton, another primary metallaaromatic framework. Metallabenzyne-fused metallapentalenes show versatile reactivities, and the most interesting one is the metal carbyne bond shift from a 6-membered to a more strained 5-membered ring, affording the above-mentioned metallabenzene-fused metallapentalyne. This work makes carbolong chemistry more complete, and provides a method to achieve metallabenzynes, which is anticipated to concurrently advance the development of these two types of metallaaromatics.

Date: 2024
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DOI: 10.1038/s41467-024-48835-8

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