鲁丁亚哥斯蒂克 (phosphinoaryl) 复合物:多核固态和溶液NMR,X射线和DFT研究
Yann Gloaguen1, Gilles Alcaraz, Alban S Petit
1CNRS, Laboratoire de Chimie de Coordination, Toulouse, France.
Journal of the American Chemical Society
|September 13, 2011
概括
这项研究探讨了一种新型 (phosphinoaryl) 氨基联体与复合物的反应性. 这种连接体形成了一个双功能复合体,具有激光相互作用,突出显示了有机金属化学中的新可能性.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 化学 化学
背景情况:
- 新型配体的开发对于促进催化过程至关重要.
- 鲁复合物因其催化潜力而被广泛研究.
- 双功能带提供独特的协调模式和反应性.
研究的目的:
- 为了研究一个 (phosphinoaryl) ((amino) 联体与一个 bis ((dihydrogen) 复合物的反应性.
- 用各种光谱和晶体学方法来描述由此产生的复合物.
- 了解复合体中的联体的协调行为和电子性质.
主要方法:
- 密度函数理论 (DFT) 的计算.
- 进行X射线衍射分析.
- 多核核磁共振 (NMR) 光谱,包括固态NMR光谱.
主要成果:
- 一种新型的复合物的合成和表征,其中包括双功能连接体.
- 观察联体解离和溶液中不和的16电子复合物的形成.
- 识别Ru-H-B相互作用,表明有毒相互作用.
结论:
- (氨基) 连接体通过其素和氨基子部分双功能地起作用.
- 这项研究表明,在复合体中形成了激光相互作用.
- 这些发现有助于理解有机金属化学中的联体设计和反应性.
相关概念视频
02:42Valence Bond Theory
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
02:58Crystal Field Theory - Octahedral Complexes
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
02:46Crystal Field Theory - Tetrahedral and Square Planar Complexes
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...