オーガノプラチナ ((II) コンプレックスと単価硬貨製金属トリフラートの相互作用
Marc-Etienne Moret1, Peter Chen
1Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule (ETH) Zürich, CH-8093 Zürich, Switzerland.
Journal of the American Chemical Society
|April 1, 2009
まとめ
オーガノプラチナ (II) 複合体は,銅と銀とダティブ結合を形成し,新しいホモ・ヘテロレプティック複合体を形成する. これらの複合体は,C-H活性化を含むユニークな結合相互作用と反応性を示す.
科学分野:
- 有機金属化学 有機金属化学
- 協調化化学について
- 無機化学 無機化学とは
背景:
- オーガノプラチナム (((II) 複合体は,N,N-ケラリングリガンドを持つことが知られている.
- コインメタル (銅,銀) は,多用途のルイス酸である.
- 金属と金属の相互作用を理解することは,協調化学において極めて重要です.
研究 の 目的:
- 銅 (I) と銀 (I) トリフラートを含む新型のオーガノプラチナ (II) 複合体を合成し,特徴づけること.
- プラチナとコインメタル間の結合相互作用の性質を調査する.
- C-H活性化を含むこれらの新しい複合体の反応性を探求する.
主な方法:
- オーガノプラチナ (II) 複合体[NN (PtMe) ]と[NN (PtPh) ]を合成する.
- 銅 (I) と銀 (I) トリフラートによるホモ・ヘテロレプティック複合体の形成.
- X線 difraktion,スペクトロスコピー,およびDFT計算を用いた特徴付け.
主要な成果:
- [{NN) PtMe{2}]は,その d{z^2) 軌道を通して,Cu{I}とAg{I}とのPt−>Mダティブ結合を形成する.
- [(NN) PtPh(2) ]は,フェニルイプソ炭素のエタ(1) またはエタ(2) 複合体を介して結合し,ホモレプス複合体を形成します.
- サポートされていないPt-->M結合は[(NN) PtPh(2) ]で観察され,熱解はC-H活性化によって[(NN) PtPh(2) ]を産出する.
結論:
- 独特のPt->M相互作用を持つ新型のオーガノプラチナ (((II)) - コインメタル複合体が合成されました.
- 結合モードは,プラチナ複合体と硬貨金属に依存しています.
- これらの複合体は,特にC-H活性化プロセスにおける触媒的応用の可能性を示しています.
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