ligand

• Substance (atome, molécule, radical ou ion) qui se lie à un atome central, généralement un métal, pour former un complexe de coordination.

A noun referring to an atom, molecule, radical, or ion that binds to a central atom, typically a metal, to form a coordination complex.

1. Chemical complex formerC1formalscientific

   An atom, molecule, radical, or ion that binds to a central atom, typically a metal, to form a coordination complex.

   ligand (complexe de coordination)

   • In the complex [Cu(NH3)4]2+, ammonia acts as a ligand.
   • The ligand donates a pair of electrons to the central metal ion.
   • Different ligands can affect the color of a coordination compound.