ダイメチル硫酸化リガンドによって安定した新しいIr(I) コンプレックスに水の酸化添加
Reto Dorta1, Haim Rozenberg, Linda J W Shimon
1Departments of Organic Chemistry and Chemical Services, The Weizmann Institute of Science, Rehovot 76100, Israel.
Journal of the American Chemical Society
|January 10, 2002
まとめ
ディメチル硫酸化物 (DMSO) とのノベルイリジウム (I) 複合体は,水の酸化添加を受けます. 橋渡しヒドロキソリガンドを備えた新しい二次元構造は,X線結晶学によって特徴づけられました.
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:
- イリジウム複合体は,様々な化学的変換における貴重な触媒と前体である.
- ディメチル硫酸化物 (DMSO) のようなリガンドを持つイリジウム (I) 複合体の反応性を理解することは,新しい合成方法論の開発に不可欠です.
研究 の 目的:
- DMSOリガンドを含む新しいイリジウム (((I)) 複合体を合成し,特徴づけること.
- これらのイリジウム複合体に水の酸化添加を調査する.
- 立体構造やリガンド結合モードを含む,結果となる製品の構造特性を探求する.
主な方法:
- イリジウム (((I) コンプレックス,IrCl (((DMSO) 3と[Ir (((DMSO) 4を含む) の合成PF6.
- イリジウム複合体の水との反応により酸化添加が誘発される.
- X線結晶学を用いた製品の特徴化.
- ピリジンとのリガンド交換反応.
主要な成果:
- IrCl (DMSO) 3 (1) とその二酸化物 [Ir2Cl2 (DMSO) ] (4) (2) の合成が成功しました.
- カチオン [Ir(DMSO) ]4]PF6 (6) の調製と,水との反応により,二次元産物3と7が得られる.
- 化合物1,3,および7のX線結晶学的な特徴付けにより,橋渡しヒドロキソリガンドを持つ二次元構造が明らかになりました.
- 複合体7におけるO結合とS結合の両方のDMSOリガンドの観察 7.
結論:
- 新型イリジウム ((I) DMSO複合体は,水の酸化添加を容易に行う.
- その結果得られた二次元構造は,イリジウム種の安定化におけるブリッジングヒドロキソリガンドの役割を強調しています.
- この研究は,潜在的なS結合を含む,イリジウム複合体のDMSOリガンドの協調行動に関する洞察を提供します.
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