The common structures having CN = 4 for transitionmetal complexes are tetrahedral and sq...

The common structures having CN = 4 for transitionmetal complexes are tetrahedral and square planar. However, these are not the only conceivable structures. Examples of main group compounds having seesaw structures are known, and trigonal-pyramidal structures may also be possible in some cases.

a. For these structures, determine the relative energies of the d orbitals of a transition-metal complex of formula ML₄ in which L is donor only.

b. Considering both high-spin and low-spin possibilities, calculate the energy of each configuration, d¹ to d¹⁰ , in terms of .

c. For which configurations is the seesaw structure favored? The trigonal-pyramidal structure? Neither?