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Synthesis and Characterization of Supramolecular Colloids
Published on: April 22, 2016
的单体化和化复合物
Rory Melenkivitz1, Daniel J Mindiola, Gregory L Hillhouse
1Searle Chemistry Laboratory, Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, USA.
Journal of the American Chemical Society
|April 11, 2002
概括
研究人员合成了新型的三坐标复合体,其中包括基和基联体. 这些d(8) 和d(9) 化合物,由dtbpe联体稳定,表现出独特的电子特性和pi键相互作用.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 酸盐化学 酸盐化学
背景情况:
- 复合物与素连接体在催化过程中至关重要.
- 三坐标d(8) 和d(9) 的金属复合体具有独特的电子结构.
- 在晚期过渡金属中,终端胺复合体是罕见的.
研究的目的:
- 合成和描述新型的三坐标酸和胺复合物.
- 为了研究这些不寻常的复合体中的电子特性和粘合.
- 探索这些复合物的潜力,作为晚期过渡金属phosphinidenes的罕见例子.
主要方法:
- 使用1,2-bis(di-tert-butylphosphino) ethane (dtbpe) 连接物合成酸和酸复合物.
- 通过单晶X射线衍射对准复合物的结构性表征.
- 分析Ni-P键长度和连接体几何学,以了解电子相互作用.
主要成果:
- 成功制备了四种新型的三坐标复合物: (dtbpe) Ni[P(t-Bu) ((2) ] (2),[(dtbpe) Ni[=P(t-Bu) ((2)) (((+)][PF(6) ((-) ] (3),[(dtbpe) Ni[=P(H) ((dmp) ]+ ((((PF6) ((-) 5) 和 (dtbpe) Ni[=P(dmp) ] (6).
- 结构性特征证实了协调环境和联系.
- 观察到的Ni-P键的长度和几何形状表明参与了对称性允许的连接物与金属pi键.
结论:
- 合成的三坐标d(8) 复合体表现出显著的对金属pi键.
- 复合物6代表了一个稳定的晚期过渡金属终端胺复合物的罕见例子.
- 这些发现有助于理解低坐标-系统中的结合和反应性.
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