SiH4を分子L(H) 2CoSiCo(H) 2Lシリシド複合体に直接変換する
Rex C Handford1, Trisha T Nguyen2, Simon J Teat3
1Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.
Journal of the American Chemical Society
|January 25, 2023
まとめ
この研究では,シリコン四水素とコバルトの断片を用いた新しい二金属シリキド複合体の合成が報告されています. シンメトリックな二コバルトシリシドが直接合成され,これらの重要な有機金属化合物への新しい経路を提供しました.
科学分野:
- 有機金属化学
- 無機化学
- 材料科学
背景:
- バイメタリックシリシド複合体の合成は困難です.
- シリコン金属結合の活性化は新しい材料の開発に不可欠です.
研究 の 目的:
- バイメタリック分子シリシド複合体の合成を報告する.
- シリコン四水素とコバルト複合体の反応性を調べる
- 合成されたシリシドの電子的および構造的性質を調査する.
主な方法:
- 複数のSi-H結合が金属中心で活性化している.
- 特定のリガンド (Tp′′と[BP2Pz]) を含む14電子のLCo(I) 断片の使用.
- 密度関数理論 (DFT) 研究と固体分子構造分析.
主要な成果:
- (Tp′′Co) 2 ((μ-N2) とSiH4の反応により (Tp′′Co) 2 ((μ-H) と (Tp′′Co) 2 ((μ-H) 2) が得られる.
- [BP2Pz]がサポートされたCo複合体は,シリレンとシリシド複合体を形成するSi-H酸化添加物をもたらした.
- [BP2Pz](H) 2CoSiCo(H) 2[BP2Pz]という対称な二コバルトシリシドが直接合成された.
- シリケイド複合体は,CO,DMAP,MeClに対する反応性を示し,μ-シリコン原子の機能化につながった.
結論:
- [BP2Pz]リガンドはSi-Hの酸化添加と二金属シリシドの形成を促進する.
- 合成された二コバルトシリシドは,対称バイメタリックシリシドへの新しく直接的な経路を表しています.
- シリケイド複合体のμ-シリコン原子は,オルガノシランを形成するために機能化することができる.
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