Problem

The complexes [Cr(O)Cl5]2- and [Mo(O)Cl5]2- have symmetry. a. Use the angular over...

The complexes [Cr(O)Cl₅]²^- and [Mo(O)Cl₅]²^- have symmetry.

a. Use the angular overlap approach ( Chapter 10 ) to estimate the relative energies of the d orbitals in these complexes.

b. Using the character table, determine the symmetry labels (labels of irreducible representations) of these orbitals.

c. transition occurs at 12,900 cm^-¹ for [Cr(O)Cl₅]²^- and at 14,400 cm^-¹ for [Mo(O)Cl₅]²^- . Account for the higher energy for this transition in the molybdenum complex. (See W. A. Nugent and J. M. Mayer, Metal-Ligand Multiple Bonds , John Wiley & Sons, New York, 1988, pp. 33–35.)