"ligand"@en-us . "a substance (an atom or molecule or radical or ion) that forms a complex around a central atom"@en-us . . "15110307-n"^^ . "115110307"^^ . "a substance (an atom or molecule or radical or ion) that forms a complex around a central atom"@en-us . "0"^^ . . . . . "110842195"@en-us . . . "0"^^ . "114254866"@en-us . . "ligand"^^ .