Ligands
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Ligands
Ligands (pronounced: /ˈlaɪɡəndz/) are atoms, ions, or molecules that bind to a central metal atom to form a coordination complex. The binding can occur through a single atom or through a larger functional group.
Etymology
The term "ligand" comes from the Latin word "ligare," which means "to bind." This reflects the function of ligands, which is to bind to other molecules.
Types of Ligands
There are several types of ligands, including:
- Monodentate ligands: These ligands bind to the central atom through one atom only.
- Bidentate ligands: These ligands bind to the central atom through two atoms.
- Polydentate ligands: These ligands bind to the central atom through multiple atoms.
- Chelating ligands: These are a type of polydentate ligand that forms a ring of atoms including the central atom.
Related Terms
- Coordination complex: A molecule or ion that contains a central metal atom or ion, surrounded by one or more ligands.
- Metal-ligand bond: The bond formed between a ligand and a metal atom in a coordination complex.
- Chelate: A type of coordination complex in which a polydentate ligand forms a ring of atoms including the central atom.
See Also
External links
- Medical encyclopedia article on Ligands
- Wikipedia's article - Ligands
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