Respuesta :
Answer:
a). Coordination no. of [tex][Ni(en)_2(NH_3)_2]^2+[/tex] = 6
b). Coordination no. of [tex][Fe(en)(ox)Cl_2]^2-[/tex] = 6
Explanation:
Coordination number is defined as number of donar atoms bonded to the central atom of the complex ion.
a). Coordination no. of [tex][Ni(en)_2(NH_3)_2]^2+[/tex] = 6
en or ethylenediamine is a bidentate ligand.
In bidentate ligand, two atoms directly bonded to the central atom.
NH3 is a unidentate ligand.
So, coordination no.= No. of bidentate ligand x 2 + No. of unidentate ligand
= [tex]2\times 2 + 2 = 6[/tex]
b). Coordination no. of [tex][Fe(en)(ox)Cl_2]^2-[/tex] = 6
Ethylenediamine (en) is a bidentate ligand.
oxalate ion (ox) is also a bidentate ligand.
Cl is a unidentate ligand
So, coordination no.= No. of bidentate ligand x 2 + No. of unidentate ligand
= [tex]2\times 2 + 2 = 6[/tex]
