Synthesis of μ-Diborolyl Triple-Decker Complexes by Electrophilic Stacking. Similar Bonding Properties of Anions [CpCo(1,3-C3B2H5)]− and Cp&

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• 作者：Walter Siebert ; Alexander R. Kudinov ; Piero Zanello ; Mikhail Yu. Antipin ; Vyacheslav V. Scherban ; Alexander S. Romanov ; Dmitry V. Muratov ; Zoya A. Starikova ; Maddalena Corsini
• 刊名：Organometallics
• 出版年：2009
• 出版时间：May 11, 2009
• 年：2009
• 卷：28
• 期：9
• 页码：2707-2715
• 全文大小：251K
• 年卷期：v.28,no.9(May 11, 2009)
• ISSN：1520-6041

文摘

Triple-decker complexes with a bridging diborolyl ligand CpCo(μ-1,3-C₃B₂Me₅)M(ring) (M(ring) = RuCp, 4; RuCp*, 5; Co(C₄Me₄), 6) were synthesized by electrophilic stacking of the sandwich anion [CpCo(1,3-C₃B₂Me₅)]⁻ with the [(ring)M(MeCN)₃]⁺ cations. Structures of 4−6 were confirmed by X-ray diffraction. The electrochemical and spectroelectrochemical behavior of the complexes prepared was studied. DFT calculations of the redox potentials were also performed. Similar bonding properties of anions [CpCo(1,3-C₃B₂R₅)]⁻ and [C₅R₅]⁻ (R = H, Me) toward [M(ring)]⁺ cations were established both experimentally (synthesis, electrochemistry, and X-ray diffraction) and theoretically (energy decomposition and Mulliken population analysis).