In case anybody is looking for the issue of X axis again here it is:
Example:
The complex [Co(H2O)6]+ has two d-d absorption bands at 16,600 cm-1 and 24,800 cm-1
Looking at the Tanabe-Sugano diagram specifically for d6 (Co3+ is d6) we can see that the transitions are 1T1g <-- 1A1g and 1T2g...