碳基:SeBSe和SBS Pd (II) 复合物的合成和结构
Alexander M Spokoyny1, Matthew G Reuter, Charlotte L Stern
1Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Journal of the American Chemical Society
|July 9, 2009
概括
研究人员使用m-carborane合成了新的丰富的钉复合物. 这些金属复合体具有独特的Pd-B(2) 键,代表了具有有趣电子特性的第一个金属钉结构.
科学领域:
- 有机金属化学 有机金属化学
- 化学 化学 化学
- 协调化学 协调化学
背景情况:
- 针复合体是协调化学中的多功能联结体.
- 碳酸,特别是m-碳酸,具有独特的电子和结构性质.
- 新型金属键的开发仍然是一个活跃的研究领域.
研究的目的:
- 报告新丰富的器复合物的合成.
- 探索涉及和的新型协调图案.
- 为了研究m-carborane所赋予的电子特性.
主要方法:
- 通过独立的路径合成SeBSe和SBS链体.
- 连接体与的金属化 (II).
- 由此产生的金属具复合物的特征.
主要成果:
- 成功合成来自m-carborane的独特,富含的钉复合物.
- 形成Pd-B(2) 键,通过或乙烯配体进行化.
- 展示了第一个金属具复合体的例子.
结论:
- 合成的复合物代表了一种新型的金属器化合物.
- 而m-carborane子显著影响这些复合物的电子性质.
- 这些发现为进一步探索含协调化合物开辟了道路.
相关概念视频
Valence 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...
Hybridization of Atomic Orbitals I
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...
Hybridization of Atomic Orbitals II
sp3d and sp3d 2 Hybridization
Structural Isomerism
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
VSEPR Theory and the Basic Shapes
Overview of VSEPR Theory
Valence Bond Theory and Hybridized Orbitals
According to valence bond theory, a covalent bond results when: (1) an orbital on one atom overlaps an orbital on a second atom, and (2) the single electrons in each orbital combine to form an electron pair. The strength of a covalent bond depends on the extent of overlap of the orbitals involved. Maximum overlap is possible when the orbitals overlap on a direct line between the two nuclei.
A σ bond (single bond in a Lewis structure) is a covalent bond in which the electron density is...
A σ bond (single bond in a Lewis structure) is a covalent bond in which the electron density is...


