ランタニドクラスターの構成要素としてのレアルガー:銅クラスターをランタニドクラスターで封じ込める
Nicholas Arleth1, Sebastian Bestgen, Michael T Gamer
1Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT) , Engesserstrasse 15, Geb. 30.45, 76131 Karlsruhe, Germany.
Journal of the American Chemical Society
|September 24, 2014
まとめ
ランタニドメタロセネスはアルゼン硫化物と反応し,新しい開閉のケージ複合体を形成する. 独特のサマリウム銅クラスターが銅四面体を封じ込め,f元素封じ込め化学の初となる.
科学分野:
- 有機金属化学 有機金属化学
- 協調化化学について
- 無機化学 無機化学とは
- マテリアルサイエンス 材料科学
背景:
- ランタニドメタロセンは,協調化学における多用途の前駆体である.
- 硫化アルゼン (As4S4,As4S3) は,豊富な反応性を持つ無機ケージ化合物である.
- f元素を含む新しいケージ化合物の合成は,依然として重要な課題です.
研究 の 目的:
- 二価ランタニドメタロセンの反応性とアルゼン硫化物の反応性を調べるために.
- 新規のオープン・クローズド・ケージ・コンプレクスを合成し,特徴づけること.
- f元素と移行金属を含むエンドヘッダルのクラスターの形成を調査する.
主な方法:
- ランタニドメタロセネス ([Cp*2Ln(thf) 2 , [Cp′′′2Sm]) がリアルガー (As4S4) とダイモルフィット (As4S3) と反応する.
- [CuMes]との反応によるサマリウム-硫黄-銅のクラスタの合成.
- 発現した複合体の特徴は,スペクトロスコピーと結晶学技術を用いて描写する.
主要な成果:
- オープンケージのテトラメタリック [ ((Cp*2Sm)) ((Cp*Sm)) 3AsS3 (((Cp*AsS2) 2 (((thf)) 3およびトリメタリック [ ((Cp*Yb)) 3As2S4 ((Cp*AsS2) (((thf)) 2複合体の形成.
- 閉じた11頂点のケージクラスター [Cp′′′Sm]3[AsS3]2]と [Cp*Yb]3[AsS3]2]の合成.
- 最初のf元素に封じ込められた移行金属カルコゲン化物群の発見, [(Cp′′′Sm(thf)) 4Cu4S6),サマリウム硫化物群内のCu4テトラエドルを特徴とする.
結論:
- 二重ランタニドメタロセンは,アルセニック硫化物との反応性が多様で,新しいケージ構造を生み出します.
- この研究は,前例のないCp*AsS2(2-) アニオンと,協調化学におけるAs2S4(4-) アニオンを導入した.
- ランタニド金属塩基誘導体によるCu4S6クラスタの成功した封じ込めは,クラスター化学と材料科学の新たな道を開く.
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