Barium ions, CN- and CO2+ form an ionic complex. If this complex is 75% ionised in aqueous solution with Vant Hoff factor (i) equal to four and paramagnetic moment is found to be 1.73 BM(due to spin only) then the hybridisation state of CO(II) in the complex will be :
sp3d
d2sp3
sp3d2
dsp3
Inner sphere complex -
Complexes in which (n-1)d orbitals are used in hyberdisation.
- wherein
For example:
Strong Field Ligand -
These are the ligands which pair the electron in inner d-orbital and makes required d-orbitals empty/available.
- wherein
For example: CO, CN etc
formula of complex is
and hybridisation is dsp3 as it is a inner orbital complex with strong field ligand.