高値ニッケル (IV) オキシド複合体の一時的形成と反応性
Sandeep K Padamati1, Davide Angelone1,2, Apparao Draksharapu1
1Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen , Nijenborgh 4, 9747AG, Groningen, The Netherlands.
Journal of the American Chemical Society
|June 6, 2017
まとめ
研究者は,室温で形成された新しい二核ニッケル (IV) オキシドブリッジ複合体について報告しています. この高価ニッケル-酸素種は,選択的酸化反応における塩化ナトリウム反応性を制御するための新しい可能性を提供します.
科学分野:
- 無機化学
- 有機金属化学
- カタリシス
背景:
- 高価金属オクソ種は酸化触媒における重要な中間物質である.
- 二核の高価ニッケル複合体の安定化と特徴付けは大きな課題を提示しています.
- Ni ((IV) O種の電子的および構造的性質を理解することは,それらの触媒的可能性を解き放つための鍵です.
研究 の 目的:
- 新型反応性高い二核ニッケル (IV) オキシドブリッジ複合体を合成し,特徴づけること.
- Ni ((IV) O種の構造的および電子的性質を調査する.
- 選択的酸化のための有機基質とのこの複合体の反応性を調査する.
主な方法:
- 二核ニッケル (IV) オキシドブリッジ複合体と塩化ナトリウムとの反応による合成
- 紫外線吸収,共振ラーマン,1H NMR,EPR,X線吸収スペクトロスコーピーを用いた構造と電子的特徴付け.
- 密度関数理論 (DFT) の方法とESI質量スペクトロメトリを用いた計算分析.
主要な成果:
- 安定した二核ニッケル (IV) オキシドブリッジ複合体,L2Ni (IV) 2 (μ-O) 3+が室温で形成される.
- 詳細な構造とスペクトル学的な証拠は,Ni (IV) -O結合と二核核を確認します.
- 有機基質との反応性の実証,選択的酸化の可能性を示す.
結論:
- 高値二核ニッケル (IV) オキシドブリッジ複合体の成功合成と特徴付け
- このNi ((IV) O種は,基本的な反応性を研究し,新しい触媒酸化方法を開発するためのプラットフォームを提供します.
- 選択的有機変異における制御された塩化ナトリウム反応性への道を開く.
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