一个单体铜的合成,固态晶体结构和反应性 ((I) anilido复合体
Elizabeth D Blue1, Amelia Davis, David Conner
1Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA.
Journal of the American Chemical Society
|August 2, 2003
概括
研究人员合成和表征了一种新型的铜胺复合物, (dtbpe) CuNHPh,通过光谱和晶体分析揭示了其独特的结构和反应性质.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 无机合成 无机合成
背景情况:
- 铜胺复合物是各种催化转换中的重要中间体.
- 了解这些复合物的电子和结构性质对于设计新的催化剂至关重要.
- 以前的研究集中在氨基联结体上,但对胺复合物的表征研究较少.
研究的目的:
- 合成和分离一个新的铜(I) 胺基复合物, (dtbpe) Cu ((NHPh).
- 通过光谱和晶体学方法充分描述该复合体.
- 为了研究胺联体的反应性,并将其与相关复合体进行比较.
主要方法:
- 通过[(dtbpe) Cu(mu-Cl) ](2) 与LiNHPh的反应合成 (dtbpe) Cu(NHPh.
- 使用红外光谱,多核核核磁共振光谱和单晶X射线衍射进行表征.
- 与一个相关的铜(I) 氨基复合体进行比较结构分析,[(dtbpe) Cu(NH(2) Ph)][BF(4) ].
- 反应性研究涉及与电友如[Ph(3) C][BF(4) ]和基化物 (EtX) 的反应.
主要成果:
- 成功合成和分离了 (dtbpe) Cu(NHPh) 复合体.
- 详细的结构阐释揭示了胺,铜和环之间的pi相互作用.
- 通过与电友的反应,证明胺联体的核友性特性,形成新的C-N键.
- 与相关的八面体复合体的反应性进行比较.
结论:
- 合成的铜(I) 胺复合体由于pi相互作用而表现出独特的结构特征.
- 氨基酸连接体显示出显著的核友反应性,使C-N键形成.
- 这项研究为铜胺复合物的化学和其潜在应用提供了宝贵的见解.
更多相关视频
10:19Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers
Published on: September 27, 2018
07:20Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
Published on: October 6, 2023
相关概念视频
Ionic Bonding and Electron Transfer
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.
Structures of Solids
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
Ionic Crystal Structures
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Metallic Solids
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Formation of Complex Ions
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...
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...
