l. Six-coordinate Cr(II) complexes of the type trans-[CrL₄A₂]ⁿ⁺ gercrally have magnetic moments consistent with three rrnpaired electrons, which suggests occupancy of the d orbitals as shown to the right. In principle, a complex with only one unpaired electon could be generated by a suitable choice of L and A suchthat the separation between the d_xy and the degenerate d_xz, d_yz orbitals becomes larger than the spin pairing energy.

Assume that L is a o-donor only ligand. Would strong fi donors OR stong r acceptors be the best choice for axial ligand A in order to increase  the separation of the dxy and the degenerate d_xz, d_yz orbitals? Explain the basis for yorn choice being careful to: 1) explicitly indicate the relative energies of the metal and ligand a orbitals and 2) explicrtly indicate the speci{ic ligand orbitalmetal orbital interactions that will influence the relative energies of the d_xy and the degenerate d_xz, d_yz orbitals.