complexation
/ˌkɒmplɛksˈeɪʃən/Definitions
1. noun
The act of forming a complex or the state of being complex; a complex system or structure.
“The complexation of the molecule made it difficult to analyze.”
2. noun
In chemistry, the process of forming a complex ion, especially one involving a metal ion and a ligand.
“The complexation reaction is a crucial step in the synthesis of the new compound.”