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T形14電子のスティボラニル・ゴールド複合体の合成,構造,および性質
Casey R Wade1, Tzu-Pin Lin, Ryan C Nelson
1Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, USA.
Journal of the American Chemical Society
|May 14, 2011
まとめ
ステボラニルリガンドを併用した新しい三価金複合体は,予期せぬオロフィル相互作用を示し,強力な電子提供を示唆している. この複合体はフッ化物と反応して,アニオン性オーラートフッ化オステボランを形成し,金-アンチモンの化学に関する知識を広げます.
科学分野:
- 有機金属化学 有機金属化学
- 無機化学 無機化学とは
- 協調化化学について
背景:
- 三価金複合体は,単価金複合体よりも一般的ではありません.
- オーロフィリック相互作用は,典型的には単価金化合物で観察されます.
- 金の電子特性に対するリガンド効果を理解することは極めて重要です.
研究 の 目的:
- 新しい周期性スティボラニル・ゴールド複合体を合成し,特徴づけること.
- 三価金の電子特性と反応性を調査する.
- アニオン黄金-アンチモニー複合体の形成を調査する.
主な方法:
- 金-スティボラニル複合体の合成と構造的特徴.
- 密度関数理論 (DFT) による計算.
- X線吸収近辺構造 (XANES) スペクトロスコーピーのX線吸収近辺構造 (XANES) スペクトロスコーピーのX線吸収近辺構造 (XANES) スペクトロスコーピーのX線吸収近辺構造 (XANES) スペクトロスコーピーのX線吸収近辺構造 (XANES) スペクトロスコーピーのX線吸収近辺構造 (XANES) スペクトロスコーピーのX線吸収近辺構造 (XANES) スペクトロスコーピーのX線吸収近辺構造 (XANES)
- 様々なハリド化物との反応性研究.
主要な成果:
- T形金色幾何学を持つサイクルスティボラニル-ゴールド (III) 複合体 (1) が合成されました.
- 複合体は異常なアオロフィリック相互作用を示し,電子が豊富な三価金を示している.
- DFTとXANESのスペクトルは,オーラート-スティボニウム誘導体の記述をサポートしています.
- 複合体1はフッ化物と反応して,アニオン性オーラートフッ化オステボラン複合体 ([2](-) を形成する.
結論:
- スティボラニルリガンドは,三価金中心に強いシグマドーナー特性を与える.
- 合成された複合体は,ユニークな電子および結合特性を示しています.
- アニオン複合体の形成は,金-アンチモニー系における新しい反応経路を示しています.
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