${\left[ {V\,{{\left( {CN} \right)}_6}} \right]^{4 - }}$ , ${\left[ {Fe\,{{\left( {CN} \right)}_6}} \right]^{4 - }}$ , ${\left[ {Ru\,{{\left( {N{H_3}} \right)}_6}} \right]^{3 + }}$ , અને ${\left[ {Cr\,{{\left( {N{H_3}} \right)}_6}} \right]^{2 + }}$
Complex | Configuration | No. of unpaired electrons |
$[V(CN)_6]^{4-}$ | $t_{2g}^3\,e_g^0$ | $3$ |
${[Cr{(N{H_3})_6}]^{2 + }}$ | $t_{2g}^4\,e_g^0$ | $2$ |
${[Ru{(N{H_3})_6}]^{3 + }}$ | $t_{2g}^5\,e_g^0$ | $1$ |
${[Fe{(CN)_6}]^{4 - }}$ | $t_{2g}^6\,e_g^0$ | $0$ |
Magnetic moment is directly proportion to number of unpaired electrons.