协调的 (II) 和 (IV) 离子:合成,结构和水解
Martin Hejda1, Lukáš Doležal1, Jan Blahut2
1Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic. libor.dostal@upce.cz.
Dalton transactions (Cambridge, England : 2003)
|October 19, 2023
概括
新的 ((II) 化合物与C,N-化和N,C,N器配体进行了合成. 这些化合物,包括酸和氧化物种,表现出可调节的易斯酸度和露素形成的潜力.
科学领域:
- 有机金属化学 有机金属化学
- 无机化学 无机化学
- 材料科学 材料科学 材料科学
背景情况:
- ((II) 化合物是协调化学中的多功能构建块.
- 设计具有特定协调环境的连接体对于调整金属中心特性至关重要.
- 了解易斯酸度和复合物的结合对于它们的应用很重要.
研究的目的:
- 为了合成和描述新的N-协调 ((II) 化合物.
- 研究C,N-化和N,C,N链对的特性的影响.
- 探索这些复合物的易斯酸度和反应性.
主要方法:
- 用C,N和N,C,N连接体合成 (II) 复合体.
- 使用多核NMR光谱 (溶液和固态125TeNMR) 进行表征.
- 单晶X射线衍射分析.
- 通过Gutmann-Beckett方法来确定易斯酸度.
- 对Te-N结合的计算分析.
主要成果:
- 成功合成了 ((II) 碳酸盐,化物和离子.
- 由于连接物交换,从N,C,N连接物形成离子化物.
- 氧化到稳定的(IV) 二化物复合物,对Dipp替代化合物具有具有挑战性的氧化.
- (IV) 复合物的水解,使其变成氧化物.
- 易斯酸度与连接体结构和协调环境的相关性.
结论:
- 合成了具有可调的易斯酸度的新型 (II) 和 (IV) 复合物.
- 连接体的选择显著影响电中心的反应性和特性.
- 这些化合物为协调化学和材料科学领域的进一步发展提供了潜力.
更多相关视频
12:27Synthesis of Hypervalent Iodonium Alkynyl Triflates for the Application of Generating Cyanocarbenes
Published on: September 8, 2013
10.9K
07:20Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
14.0K
相关概念视频
02:34Structural Isomerism
19.3K
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...
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...
19.3K
02:54Coordination Compounds and Nomenclature
21.4K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
21.4K
02:42Valence Bond Theory
8.6K
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...
8.6K
02:57Coordination Number and Geometry
15.9K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
15.9K
02:52Stereoisomerism
12.0K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
12.0K