Spectroscopy and Selection Rules

These questions deal in part with concepts presented in today's lecture and assigned online readings.

1. What is the color of an aqueous solution of titanium(III) and to what is the color due?
2. What is the color of an aqueous solution of permanganate ion and to what is the color due?
3. Why are electronic transitions for tetrahedral complexes often more intense than are those for corresponding octahedral complexes?
4. What are two ways in which an Orgel diagram differs from a Tanabe-Sugano diagram?