Question

write molecular orbital configuration for the following ions. Comment on the paramagnetic properties of these ions: N2+ and N2 2- AllNewsImagesVideosMore SettingsTools

Answer 1

Orbital configuration of N2 
σ1s2, σ*1s2, σ2s2, σ*2s2, π2py2 ≈ π2pz2, σ2px2 

Orbital configuration of N2 + 
σ1s2, σ*1s2, σ2s2, σ*2s2, π2py2 ≈ π2pz2, σ2px1 

Bond order = (no. of electrons in bonding orbitals − no. of electrons in antibonding orbitals)2 

Bond order of N2 = (10−4)2 = 3 

Bond order of N2 + = (9−4)2= 2.5