![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
发光四核铜 (I) 和黄金 (I) 异金属复合物:一种酸胺酸对角联体框架,用于选择性复合
Shubham1, Vanitha R Naina1, Peter W Roesky1,2
1Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Kaiserstr.12, 76131, Karlsruhe, Germany.
Chemistry (Weinheim an der Bergstrasse, Germany)
|May 17, 2024
概括
新的酸胺酸联体稳定铜 (I) 和金 (I) 异金属复合体. 这些复合体表现出独特的环结构和发光特性,在材料科学中提供了潜在的应用.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
背景情况:
- 素乙胺酸联体具有独特的协调能力.
- 由于其电子和光物理性质,铜 (I) 和黄金 (I) 复合物引起人们的兴趣.
- 异金属复合物可以表现出在单金属对应物中不存在的协同特性.
研究的目的:
- 为了合成新型氨酸胺酸稳定铜 (I) 和金 (I) 异金属复合物.
- 研究这些复合物的结构多样性和反应性.
- 探索合成的发光异金属化合物的光物理性质.
主要方法:
- 配方体 [{Ph2PCCC(NDipp) 2}Li(thf) 3 的合成 (Dipp=2,6-N,N'-二异烯).
- 联体与CuCl和Au(tht) Cl的反应形成八个和十二个成员的环.
- 使用[{Ph2PCCC(NDipp) 2}2Cu2]合成异金属Cu (I) /Au (I) 复合物的金属聚合物战略.
- 在与CuX反应[{Ph2PCCC(NDipp) 2}2Au2]时发生的环重新排列反应.
- 目标化合物的单合成.
- 发光复合体的光物理特征.
主要成果:
- 成功合成了八个成员环[{Ph2PCCC(NDipp) 2}2Cu2]和十二个成员环[{Ph2PCCC(NDipp) 2}2Au2].
- 铜(I) 模体[{Ph2PCCC(NDipp) 2}2Cu2]作为异金属Cu(I) /Au(I) 复合体合成的金属联体,保留了中心环结构.
- 黄金(I) 分子[{Ph2PCCC(NDipp) 2}2Au2]与CuX的反应导致了重新排列,形成相同的八个 Cu2 环结构.
- 一合成为这些复杂物提供了替代途径.
- 研究了发光异金属复合体的光物理性质.
结论:
- 酸胺酸联体使新的Cu (I) 和Au (I) 复合体形成,具有不同的环结构.
- 这些复合物的反应性允许通过金属聚合物策略或重新排列反应来控制异金属化合物的合成.
- 合成的发光异金属复合物需要进一步研究潜在的应用.
相关概念视频
02:51Metal-Ligand Bonds
20.7K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
20.7K
01:19Complexation Equilibria: The Chelate Effect
505
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
505
00:43Complexometric Titration: Ligands
946
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
946
02:42Valence Bond Theory
8.5K
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...
8.5K
01:14Photoluminescence: Applications
387
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
387
01:22EDTA: Chemistry and Properties
1.9K
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
1.9K