Coordination Number

[Marin_Rice_2D]

When determining the coordination number do we account for the number of bonds that a ligand attaches to the central atom with (ex. single, double) or just in general how many ligands are attached to the central atom?

[Destiny Caldwell 3J]

When determining the coordination number, you generally count the total number of ligands (regardless of the type of bond, whether single or multiple) directly attached to the central atom. The coordination number represents the total number of bonds formed between the central metal atom (or ion) and its ligands in a coordination complex.
Counting the number of ligands gives you the coordination number, which is a key parameter in describing the geometry and structure of coordination compounds. The specific nature of individual bonds (single, double, or even triple) is typically considered when discussing bond types but does not affect the coordination number itself.

[Isabelle Huerta 2I]

The coordination number refers to the total number of ligands or donor atoms attached directly to the central atom within a coordination complex. It does not consider the nature of the bonds (single, double, etc.) formed between the ligands and the central atom, but rather the count of ligands surrounding the central atom. The coordination number is a count of ligands directly bonded to the central atom in a coordination complex, providing insight into the geometry and structure of the complex without specifying the nature or type of individual bonds between the ligands and the central atom.