(a) For the complex [Fe(CO) 5 ], write the hybridization, magnetic character and spin of the complex. (At. number: Fe = 26) (b) Define crystal field splitting energy.

Question

Philoid · Accepted Answer

(a) Since, CO is a neutral ligand thus, Fe is in 0 oxidation state.

Electronic configuration of Fe = 4s² 3d⁶

The unpaired electrons will pair up as the CO ligands are strong field ligands and dsp³ hybridisation is formed.

Since, there is no unpaired electron so the compound is diamagnetic and low spin.

(b) The splitting of the degenerate d-orbitals due to presence of ligands in a definite geometry is called crystal field splitting and the energy separation between the two splitted orbitals i.e. t_2g and e_g is called crystal field splitting energy (CFSE) denoted by Δ_o.

(a) For the complex [Fe(CO)5], write the hybridization, magnetic character and spin of the complex. (At. number: Fe = 26)(b) Define crystal field splitting energy.

(a) For the complex [Fe(CO)₅], write the hybridization, magnetic character and spin of the complex. (At. number: Fe = 26)
(b) Define crystal field splitting energy.