All-boron analogue of planar benzene on an osmium template.

ABSTRACT: The synthesis of the planar hexaborane B₆ ring remains a long-standing and elusive ambition in boron chemistry, defying boron's intrinsic electron deficiency that drives it to favour polyhedral three-dimensional geometries rather than chains and rings. Owing to this domination, earlier attempts to stabilize the planar B₆ ring in a monometallic template encountered no success. Herein, we report the synthesis and structure of bis-nido-[Cp*Os(η ⁶-B₆H₁₁)] (Cp* = η ⁵-C₅Me₅) (1), the first planar [B₆H₁₁] ring stabilized by the monometallic late transition metal (TM) fragment [Cp*Os]. The fluxionality due to rapid exchange between the bridging hydrogens in 1 led to co

SUBMITTER: Kar K 

PROVIDER: S-EPMC12606463 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature