+1 と 0 の形式的酸化状態に到達するイテルビウム複合体の多電子還酸化化学
Maxime Tricoire1, Weronika Sroka1, Thayalan Rajeshkumar2
1Group of Coordination Chemistry, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
Journal of the American Chemical Society
|December 16, 2024
まとめ
この研究はイテルビウム
科学分野:
- 有機金属化学
- ランタニド化学
- レドックス化学
背景:
- ランタニド・レドックス化学は,通常,単一の電子移転に制限されます.
- リミテッド・アクセシブルな酸化状態は,ランタノイドのより広範な反応性を阻害する.
研究 の 目的:
- イテルビウムの多電子還元化学を 達成する.
- 新型トリス・シロキシド・アレン・リガンドの酸化還元能力を探る.
主な方法:
- リドックス活性リガンドによるイテルビウム複合体の合成と分離.
- 4つの異なるイテルビウムの酸化状態の結晶学およびスペクトル学的特徴.
- 電子構造確認のための密度関数理論 (DFT) 研究.
主要な成果:
- +3, +2, +1, 0の正式な酸化状態でイテルビウム複合体を合成し,特徴づけることに成功した.
- トリス・シロキシド・アレン・リガンドが2つの電子を貯蔵できることを示した.
- Yb(I) 複合体は,有機アジドとの2電子移転反応性を示し,イミド中間物質を形成した.
結論:
- リドックス活性リガンドは,イテルビウム化学における前例のない低酸化状態へのアクセスを可能にします.
- この研究は,ランタナイドの酸化還元反応の範囲を単一の電子移転を超えて拡大する.
- 単一のランタニドセンターでの2電子移転の希少な例を示している.
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