ウラニルイオン[N=U=O]+[N=U=O]のニトリドで置換されたアナログの合成
Skye Fortier1, Guang Wu, Trevor W Hayton
1Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA.
Journal of the American Chemical Society
|May 6, 2010
まとめ
この研究では,混合価のU ((IV/V)) 種と,X線結晶学と磁気研究によって特徴づけられるユニークなトランス[O=U=N]+部分を持つオキシ・ニトリド複合体を含む,新しいウラン・窒素複合体を合成しています.
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:
- ウラン-窒素化学は,基本的な結合と反応性を理解するために不可欠です.
- 複数の窒素機能を持つ明確に定義されたウラン複合体の合成は困難です.
研究 の 目的:
- 新しいウラン・窒素金属サイクルおよび関連する複合体を合成し,特徴づけること.
- ウランニトリドとオキソニトリド種の構造的および電子的性質を調査する.
主な方法:
- U[N(SiMe3) 2) 3がナトリウムアジドと反応し,ウラン-窒素金属サイクルを形成する.
- ヨウ素とトリメチラミンN酸化物を用いた酸化反応.
- 構造的決定のためのX線結晶学.
- SQUID磁気計は,磁気特性分析のためのものです.
主要な成果:
- ウラン-窒素メタラサイクル [Na(DME) 2 ((TMEDA) ][ ((NR2) 2U ((μ-N) ((CH2SiMe2NR) U ((NR2) 2) ] (1) の合成について
- 混合価のU(IV/V) ニトリド複合体 (2) とオキソニトリド複合体 [Na(DME) ] [Na(NR2) 2 ] [O (U) ] [μ-N (U) ] [CH2SiMe2NR (U) ] [NR2) ] (3) を形成する.
- X線構造は,不等価なU=N-U結合と,複合体3のトランスオキソ-ニトリド部分を示し,ウラニルカチオンに似ています.
結論:
- 多様な結合モチーフを持つ新しいウラン-窒素複合体が合成されました.
- 構造的および磁性特性は,ウラン-窒素相互作用の洞察を提供します.
- オキソニトリド複合体は,ウラニル化学に関連するユニークな反応性と構造特性を表しています.
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