ウラン (((III)) ペンタレン複合体によるダイナトゲンの可逆結合と還元
F Geoffrey N Cloke1, Peter B Hitchcock
1The Chemistry Laboratory, School of Chemistry, Physics, and Environmental Science, University of Sussex, Brighton BN1 9QJ, UK. f.g.cloke@sussex.ac.uk
Journal of the American Chemical Society
|August 9, 2002
まとめ
ウラン (((III) 混合サンドイッチ化合物1は,二酸化窒素と反転的に反応する. これはX線結晶学で確認された,独特の横向きに結合した,橋渡しダイアゼニドリガンドを特徴とする二次元複合体2を形成します.
科学分野:
- 有機金属化学 有機金属化学
- ウラン化学 ウラン化学
- 協調化化学について
背景:
- 混合サンドイッチ化合物は,ユニークな電子およびステリック特性を提供します.
- ウラン (III) 複合体は,その反応性および潜在的な用途のために興味があります.
研究 の 目的:
- 新しいウラン (((III)) 混合サンドイッチ化合物を合成し,特徴づけること.
- 二酸化窒素のような小さな分子とのこの化合物の反応性を調査するために.
主な方法:
- ウラントライオジド (UI(3) とカリウムサイクロペンタディエニル (KCp) とカリウムベースのサイクロオクタテトレーン誘導体との連続反応.
- 合成された化合物の結晶学的特徴.
- 二酸化窒素 (N(2) との可逆反応.
主要な成果:
- ウラン (((III) 混合サンドイッチ化合物[U (((eta-Cp) (((eta-C ((8) H ((4) [Si ((i) Pr ((3) -1,4))) ] (1) の合成と結晶学的な特徴付けが成功しました.
- 化合物1と二酸化窒素の反転反応により,二次元複合体 [[U(eta-Cp) (((eta-C(8) H(4) [Si(i) Pr(3) -1,4] ((2)) ] (2) ((((mu-eta(2):eta(2) -N(2)) を形成する.
- 複合体2のX線結晶構造は,横向きに結合した,橋渡しダイアゼニド (N(2)(2-)) リガンドを明らかにした.
結論:
- ウラン (III) 混合サンドイッチ複合体1は,安定し,特徴づけられる化合物である.
- ダイナトロゲンの可逆結合により,橋渡しダイアゼニドリガンドを形成することは,ウランの調整化学における重要な発見である.
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