Related Experiment Video
Updated: Jul 4, 2025
06:31
Preparation of SNS CobaltII Pincer Model Complexes of Liver Alcohol Dehydrogenase
Published on: March 19, 2020
7.1K
Understanding Cooperativity in Homo- and Heterometallic Complexes: From Basic Concepts to Design.
1Fachbereich Chemie, RPTU Kaiserslautern-Landau, Erwin-Schroedinger-Str. 54, 67663, Kaiserslautern, Germany.
Chempluschem
|February 6, 2024
Summary
Cooperative effects in metal complexes are crucial in chemistry and biology. This article reviews current concepts and methods for understanding cooperativity in homo- and heterometallic systems.
Area of Science:
- Coordination Chemistry
- Biochemistry
- Materials Science
Background:
- Cooperative effects are fundamental in various chemical and biological processes.
- Understanding these effects is key to structure-property relationships and future applications.
- Cooperativity in homo- and heterometallic complexes remains an emerging area of research.
Purpose of the Study:
- To provide an overview of existing concepts and methodologies for understanding cooperative effects.
- To highlight strategies for defining and quantifying cooperativity in metal complexes.
- To emphasize methods for investigating cooperative phenomena in homo- and heterometallic systems.
Main Methods:
- Literature review of established concepts and emerging strategies.
- Analysis of methodologies for defining and quantifying cooperativity.
- Discussion of experimental and theoretical approaches for investigating cooperative effects.
Main Results:
- Cooperative effects play a significant role in molecular interactions, catalysis, and material properties.
- Emerging concepts and methodologies are available to describe and investigate cooperativity.
- A comprehensive understanding of cooperativity in metal complexes is still developing.
Conclusions:
- Further research into cooperative effects in metal complexes is essential for advancing various scientific fields.
- Developing robust definitions and investigation methods will accelerate the understanding of cooperativity.
- This review serves as a foundational resource for researchers in the field.
Related Concept Videos
02:51Metal-Ligand Bonds
20.8K
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...
20.8K
01:58Cooperative Allosteric Transitions
7.9K
Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
7.9K
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
01:23Complexation Equilibria: Overview
684
Complexation reactions take place when dative or coordinate covalent bonds form between metal ions and ligands. The compounds formed in these reactions are called coordination compounds. The number of bonds formed between the metal ion and the ligands is called its coordination number. Generally, most metal ions in an aqueous solution are solvated by water molecules and thus exist as aqua complexes.
The equilibrium constant of the complexation reaction is represented as the formation constant...
The equilibrium constant of the complexation reaction is represented as the formation constant...
684
01:09Complexation Equilibria: Factors Influencing Stability of Complexes
370
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...
370
01:19Complexation Equilibria: The Chelate Effect
518
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...
518