酸化グループがトリアイロン複合体へ移り,核愛性μ(3) - ニトリド, [Fe3(μ(3) - N) ]- を形成する
Tamara M Powers1, Alison R Fout, Shao-Liang Zheng
1Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States.
Journal of the American Chemical Society
|February 22, 2011
まとめ
研究者は,アジドと反応してニトリド複合体を形成する新しい三核鉄複合体を合成しました. このニトリドはメチル化され,メチリミド複合体を生成し,ユニークな鉄-窒素結合を示します.
科学分野:
- 協調化化学について
- 有機金属化学 有機金属化学
- 無機合成の無機合成とは
背景:
- 三核鉄複合体は,そのユニークな磁気および触媒特性により興味を惹きます.
- メタルニトリドおよびイミド種の反応性を理解することは,窒素固定研究にとって極めて重要です.
研究 の 目的:
- 新しいヘクサデント酸結合三核鉄複合体を合成し,特徴づけること.
- この複合体の無機アジドとの反応性を調査する.
- その結果生じるニトリド複合体の,その後のアルキル化を探求する.
主な方法:
- ヘクサデント酸リガンドとその対応する三核鉄複合体の合成.
- 顕微鏡および結晶学的技術を用いた特徴付け.
- 鉄複合体をテトラブチラモニウムアジドで反応させ,メチルヨーデッドでメチル化します.
主要な成果:
- 高スピンの三核鉄複合体 ((tbs) L) Fe (((3) ((thf) の合成に成功しました.
- アニオン三核ニトリド複合体の形成, [((tbs) L) Fe (((3) (((micro ((3) -N) ]NBu ((4),アジドと反応した.
- ニトリドをメチル化によって中性メチリミド複合体 ((tbs) L) Fe (((3) (((マイクロ ((3) -NCH ((3)) に変換する.
結論:
- ヘクサデント酸リガンドは,非対称三核鉄核の形成を促進します.
- 三核鉄ニトリド複合体は,ピラミダ化されたニトリドリガンドと短いFe-Fe結合を示す.
- ニトリドリガンドは容易にアルキル化してメチリミドを形成し,複合体の構造的整合性を維持できます.
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