**9.1. Splitting of energy states corresponding to dn terms**

These are given in Table-6.


**Table 6.** Splitting of energy states corresponding to **dn** terms

The d-d spectra is concerned with dn configuration and hence the crystal field sub-states are given for all the dn configuration in Table -7.


**Table 7.** Crystal field components of the ground and some excited states of dn (n=1 to 9) configuration
