Work

Ring expansion of osmacyclopentadiene affords diverse six-membered osmaaromatics

Year: 2025
Type: article
Abstract: Metallaromatics such as metallabenzene and its heteroatom-containing analogues have aroused interests both in experimental and theoretical studies. While various six-membered metallaaromatics have been explored, a general synthetic methodology is still undeveloped. Herein, we report the skeletal editing of five-membered metallacyclopentadiene involving the insertion of the sixth atoms (S, Se, N, C) into the Os–C bond, as a general approach for osmafluoranthene derivatives containing osmathiabenzene, osmaselenabenzene, osmapyridine, and osmabenzene units. These complexes show broad UV-Vis absorptions, and their aromaticity has been authenticated spectroscopically, structurally and computationally. Six-membered metallaromatics have attracted interest, but a general synthetic methodology that enables access to such molecules remains undeveloped. Here, the authors present a skeletal editing approach towards six-membered metallacycles, enabling the creation of osmafluoranthene derivatives with diverse main-group elements.
Language: English
Field: Chemistry
Open Access status: gold
Estimated APC paid: $3,690
OpenAlex ID: W4417464649
FWCI: 0.29
Cites: 55
Cited by: 1
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