Coordination = Stability?

[JohnVRobinson]

How does the coordination number relate to the stability of a molecule and can you provide an example?

[305878818]

The coordination number, indicating the number of ligands around a central metal atom, is directly linked to the stability of a molecule. Higher coordination numbers, such as six in octahedral complexes, often contribute to increased stability by distributing charge more effectively and minimizing electron repulsion. For instance, an octahedral complex showcases enhanced stability due to the symmetrical arrangement of six ligands around the central metal atom. In contrast, coordination numbers that are too low or too high may lead to increased electron repulsion and instability. Hence, maintaining an appropriate coordination number is crucial for the stability of metal complexes.