5. Coordination Compounds
Coordination compounds form a crucial part of modern inorganic chemistry, exhibiting unique structures and properties that are foundational for biological systems and various industrial applications. Alfred Werner pioneered the theoretical framework for understanding coordination compounds, proposing key concepts regarding their bonding and structure. The chapter explores ligand types, isomerism, nomenclature, and the principles of valence bond and crystal field theories.
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What we have learnt
- Coordination compounds consist of central metal atoms surrounded by ligands that can influence their chemistry and properties.
- Isomerism in coordination compounds includes stereoisomerism and structural isomerism, which significantly impacts their reactivity and function.
- Understanding the bonding and structure of coordination compounds is critical in various fields, including medicinal chemistry and catalysis.
Key Concepts
- -- Coordination Entity
- A coordination entity is a central metal atom or ion bonded to a fixed number of molecules or ions (ligands) in a defined geometric arrangement.
- -- Ligand
- Ligands are ions or molecules that bind to a central metal atom in a coordination entity, acting as electron donors.
- -- Isomerism
- Isomerism in coordination compounds arises from different arrangements of atoms, leading to compounds that have the same formula but different properties.
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