一个完整的终端石素化物家族,[U(E)(N{SiMe3}2)3]- (E = O,S,Se,Te)
Jessie L Brown1, Skye Fortier, Richard A Lewis
1Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA.
Journal of the American Chemical Society
|August 28, 2012
概括
研究人员利用硫,和合成了罕见的终端单基因化合物复合物. 这些复合物表现出短的元素键,表明在动因化物化学中潜在的多重键.
科学领域:
- 有机金属化学 有机金属化学
- 无机化学 无机化学 有机化学
- 动因化物化学 动因化物化学
背景情况:
- 复合物与终端原体连接物是罕见的.
- 对于基本化学来说,了解动因化物化合物中的结合是非常重要的.
研究的目的:
- 为了合成和表征新的终端单原体复合物.
- 为了研究-素键的结合特性.
主要方法:
- 前体U ((H ((2)) CPPh ((3)) ((NR ((2)) ((3)) 与元素硫,和的反应.
- 使用X射线结晶学和其他分析技术进行表征.
- 通过减少合成一个oxo模拟物.
主要成果:
- 成功合成了终端单基复合物[Ph(3) PCH(3)][U(E) ((NR(2)) ((3) ] (E = S,Se,Te).
- 复合体 2-4 是极少数的终端单基的例子.
- X射线结晶学揭示了短UE键长度,表明多重键.
结论:
- 可以合成和稳定终端单基化物.
- 短UE债券表明这些活性化物复合体具有显著的多重结合特征.
- 这项工作扩展了已知的石化的化学成分.
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