通过一个diselenido dinickel ((II) 复合物的C-H激活
Jessica Wallick1, Charles G Riordan, Glenn P A Yap
1Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States.
Journal of the American Chemical Society
|September 27, 2013
概括
将添加到一个 (I) 复合体中,形成一个二 (II) 脱复合体. 这种复合物可以氧化基质并在形式之间转换,展示了复合物的动态化学.
科学领域:
- 无机化学 无机化学
- 有机金属化学 有机金属化学
- 协调化学 协调化学
背景情况:
- 复合物是各种化学转换中的多功能催化剂.
- 配体在生物系统和无机催化中起着至关重要的作用.
- 了解含有的金属复合物的反应性是开发新催化工艺的关键.
研究的目的:
- 为了合成和表征一种新的dinickel (II) diselenido复合体.
- 为了研究合成复合物的氧化还原行为和反应性.
- 探索这个复合体在基质氧化和转移反应中的潜力.
主要方法:
- 合成 (I) 前体复合物[Ni (Me) 4 (N) 4 (N) 4 (CO) ]PF6.6的合成
- 与元素发生氧化还原反应,形成dinickel (II) diselenido复合体.
- 进行X射线晶体学,以确定diselenido复合物的结构.
- 氧化反应与9,10-二甲和1,4-环合二烯.
- 由此产生的水素化物复合物的表征及其转化回到 diselenido adduct.
主要成果:
- 将添加到[Ni(Me4[12]aneN4)(CO) ]PF6中,得到了70%的取率的dinickel(II) diselenido复合物{[Ni(Me4[12]aneN4) ]2(Se2) }.
- 晶体结构显示了一个μ-η(2):η(2)-Se2连接体,其Se-Se键长度为2.379(13) Å.
- 在加热后,dinickel(II) diselenido复合物氧化了9,10-dihydroanthracene和1,4-cyclohexadiene,形成了终端水化物复合物[Ni(Me4[12]aneN4) ((SeH) ]PF6.6.
- 水素化物复合物通过与氧基的反应被再生为disenido复合物.
结论:
- 一种新的dinickel (II) diselenido复合物被成功合成并进行了结构性表征.
- 该复合体表现出动态氧化还原行为,促进基质氧化和转移.
- 这项研究突出了-复合物的潜力,用于包括氧化还原过程和化学在内的催化应用.
相关概念视频
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