Nickel, palladium, and platinum complexes of η 5- cyclopentadienide C 60R 5 ligands. Kinetic and thermodynamic stabilization effects of the C 60Ph 5 ligand

Yoichiro Kuninobu, Yutaka Matsuo, Motoki Toganoh, Masaya Sawamura, Eiichi Nakamura

    研究成果: Contribution to journalArticle査読

    59 被引用数 (Scopus)

    抄録

    The nickel-, palladium-, and platinum-RFC p complexes η 5-RFC p)(η 3-allylic) (3b, RFC p = C 60R 5, R = Me, allylic = methallyl; 4a, R = Ph, allylic = allyl; 4b, R = Ph, allylic = methallyl), Pd(η 5- RFC p)(η 3-allylic) (7a, R = Me, allylic = allyl; 7b, R = Me, allylic = methallyl; 7c, R = Me, allylic = crotyl; 8a, R = Ph, allylic = allyl; 8b, R = Ph, allylic = methallyl; 8c, R = Ph, allylic = crotyl), and Pt(η 5-RFC p)(η 3-methallyl) (9, R = Me; 10, R = Ph), were synthesized by transmetalation between K(RFC p) (R = Me, Ph) and [Ni(allylic)Br] 2, [Pd(allylic)Cl] 2, or [Pt(methallyl)Cl] 2 in THF at 25 °C for 10 min. The nickel-PhFC p complexes 4a,b are unusually more stable toward molecular oxygen than the corresponding simple nickel cyclopentadienides and survive in air for many hours at elevated temperature. The crystal structures and the electrochemical properties of the palladium complexes suggest that the unusual stability of the PhFC p complexes is due to the kinetic stabilization effect of the five Ph groups surrounding the metal atom and the thermodynamic stabilization effect of the electron-withdrawing fullerene moiety, hence suggesting new opportunities for the synthesis of otherwise unstable organometallic compounds.

    本文言語英語
    ページ(範囲)3259-3266
    ページ数8
    ジャーナルOrganometallics
    23
    13
    DOI
    出版ステータス出版済み - 6 21 2004

    All Science Journal Classification (ASJC) codes

    • 物理化学および理論化学
    • 有機化学
    • 無機化学

    フィンガープリント

    「Nickel, palladium, and platinum complexes of η <sup>5</sup>- cyclopentadienide C <sub>60</sub>R <sub>5</sub> ligands. Kinetic and thermodynamic stabilization effects of the C <sub>60</sub>Ph <sub>5</sub> ligand」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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