3.  Consider the octahedral complex ion, [CoF63-a) What is the d-type (dn63-b) Draw a strong fieldweak field63-

] to answer the next six questions.

) configuration for [CoF]? (Note: you need to answer this question correctly to be able to answer the questions that follow). 

and a crystal field splitting diagram for [CoF]. Label each diagram as either strong field or weak field. Your diagram should include the d-electrons. 

c) Label each diagram in answer (b) as either high spin or low spin. 

d) Given the ligand, F^- which crystal field is expected? (Strong or weak)

e) If the ligand, NH₃ was used instead of F- would you expect a greater D_oct or a smaller D_oct?

f) Determine the crystal field stabilization energy (CFSE) for [CoF₆]^3- in terms of the octahedral splitting parameter and the pairing energy for both the strong field and the weak field.

Strong field CFSE  =

Weak field CFSE =