形成一个桥梁胺复合物
Andrew C Behrle1, Ludovic Castro2, Laurent Maron2
1Department of Chemistry, University of Missouri , Columbia, Missouri 65211, United States.
Journal of the American Chemical Society
|November 18, 2015
概括
研究人员合成了第一个酸复合物. 这种有机金属化合物形成涉及C-H和P-H键的激活,由计算分析证实.
科学领域:
- 有机金属化学
- 化学
- 化学
背景情况:
- 有机金属化合物由于其独特的电子特性和潜在的应用而引起人们的兴趣.
- 含有三价原子与金属结合的胺复合物是难以分离和表征的反应性中间体.
研究的目的:
- 报告第一个酸复合物的合成和结构特征.
- 阐明它的形成机制,包括C-H和P-H键激活的作用.
主要方法:
- 双甲 (pentamethylcyclopentadienyl) 双甲 (IV) 与固体阻碍的反应
- 由此产生的酸复合物的结构确定.
- 过渡状态计算以调查反应机制.
主要成果:
- 第一个酸复合物[C5Me5) 2Th]2[μ2-P[2,6-CH2CH3) 2-4-(i) PrC6H2]成功合成并进行了结构特征.
- 甲作为一种副产品,由素脱质和异基的C-H键激活产生.
- 计算研究支持了一种涉及顺序P-H,C-H,C-H和P-H键激活的机制.
结论:
- 一个酸复合物的成功合成扩大了早期的行为体有机金属的已知化学成分.
- 机械学见解提供了对复合体中的键激活过程的更深入的理解.
- 这项工作为探索基于的化合物的反应性和应用开辟了道路.
更多相关视频
相关概念视频
03:35Hybridization of Atomic Orbitals II
50.3K
sp3d and sp3d 2 Hybridization
50.3K
02:27Predicting Molecular Geometry
47.0K
VSEPR Theory for Determination of Electron Pair Geometries
47.0K
02:42Valence Bond Theory
11.7K
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...
11.7K
03:24Hybridization of Atomic Orbitals I
69.3K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
69.3K
01:01Phosphodiester Linkages
114.1K
Overview
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
114.1K
03:45Formation of Complex Ions
26.8K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
26.8K