Ligands, Coordination Number and Oxidation State A ligand is a species that donates electrons to another atom or molecule. Ligands can be positively or nega...
Ligands, Coordination Number and Oxidation State
A ligand is a species that donates electrons to another atom or molecule. Ligands can be positively or negatively charged ions, molecules, or atoms. The coordination number of a ligand is the number of electrons that it can donate or accept from the central metal ion.
The oxidation state of a metal ion is the electrical charge that it has. The oxidation state of a metal ion can change when it reacts with a ligand. For example, when a metal ion loses an electron, it becomes a positive ion. When a metal ion gains an electron, it becomes a negative ion.
The coordination number and oxidation state of a metal ion are two important factors that determine the properties of a coordination complex. Ligands can bind to metal ions in a variety of ways, depending on the oxidation state of the metal ion and the nature of the ligand