1. Before we consider a problem where we examine the d-orbital splitting due to a certain ligand field geometry, we need to establish that we can accurately name the d orbitals correctly ( z2+xy, etc.). With the associated Cartesian coordinate system, properly label the d orbitals shown below. Remember that phase is arbitrary, so don't stress over where the white phase is relative to the shaded phase. 2. For a coordination complex with a trigonal planar ligand field ( D3k symmetry), the five d orbitals of the central metal lose their 5 -fold energetic degeneracy and split in a certain pattern. The Dsu character table provides information about the symmetries of the 5d orbitals. In the character table below, CIRCLE the 5 d orbitals. 3. How many groups of d orbitals will there be in the trigonal planar complex (one group of 5 , all at the same energy and same irreducible representation symmetry label, or two groups with 2 and 3 orbitals, or three groups with 2,2 , and 1 orbitals, etc.) based on the character table? Within the character table, highlight how/where you found this grouping. Answer: 4. Does the D3n character table reveal the relative energies of these 5d orbitals with respect to each other (Y/N)