1. An ion with the configuration f 2 enters an environment of octahedral symmetry. What terms arise in the free ion, and with which terms do they correlate in the complex?
2. In the strong field case, the configuration d2 gives rise to
(a) What terms may arise?
(b) How do the singlet terms of the complex correlate with the singlet terms of the free ion?
(c) What configurations arise in a tetrahedral complex, and what are the correlations?