铜中的空间-长度依赖核性和性调制 (I) 复合物与多型β-基基酸联体
Najeeb Ullah1, Venkata Sai Sashankh Penki1, Yu-Ting Chu2
1Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
Inorganic chemistry
|January 9, 2026
概括
多联体中的基间距长度控制铜 (I) 集群核和结构. 较短的间隔器形成四核集群,而较长的则产生双三核复合体,影响金属与金属的相互作用.
科学领域:
- 协调化学 协调化学
- 超分子化学 超分子化学
- 生物有机化学 生物有机化学
背景情况:
- 铜 (I) 复合体表现出多样化的核和结构图案.
- 多牙联体在决定金属集群组装方面发挥着至关重要的作用.
- 了解金属与金属的相互作用是生物灵感系统的关键.
研究的目的:
- 为了研究基间距长度在β-thioketiminate连接体对铜(I) 复杂核的影响.
- 为了分析结构性质和金属对金属的相互作用导致铜 (I) 集群.
- 探索异化物协调对集群稳定性和碎片化的影响.
主要方法:
- 合成和表征多牙型β-thioketiminate连接体 (NMR,FT-IR,UV-vis,ESI-MS) 的方法.
- 铜 (I) 复合物的形成和表征 (NMR,FT-IR,UV-vis,拉曼,单晶X射线衍射).
- 研究合金相互作用和在添加异化物后的集群碎片化.
主要成果:
- 四核铜(I) 集群以较短的间距 (C2-C4) 形成,二核三核集群以较长的间距 (C6,C8) 形成.
- (I) 中心采用扭曲的三角形平面几何学;较短的间隔增强 cuprophilic 相互作用.
- 异酸协调诱导集群碎片化,揭示了对S-Cu桥梁裂变的取决于间距的敏感性.
结论:
- 基间距长度是铜 (I) 集群核和结构组织的关键决定因素.
- 间隔器的长度调节铜中金属对金属相互作用的强度和性质.
- 这项研究通过连接物修饰来推进生物启发的金属超分子组件的设计.
更多相关视频
06:31Preparation of SNS CobaltII Pincer Model Complexes of Liver Alcohol Dehydrogenase
Published on: March 19, 2020
7.6K
11:04Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
Published on: September 7, 2019
9.7K
相关概念视频
02:51Metal-Ligand Bonds
23.9K
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...
23.9K
01:19Complexation Equilibria: The Chelate Effect
1.2K
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...
1.2K
02:42Valence Bond Theory
11.2K
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...
11.2K
00:43Complexometric Titration: Ligands
2.2K
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...
2.2K
01:09Complexation Equilibria: Factors Influencing Stability of Complexes
786
In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
786
03:02Colors and Magnetism
13.9K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
13.9K