Question

. For the following complexes:

i) give the formal oxidation state of the metal

ii) the dn count for the metal ions (e.g. Fe0 à d8 )

iii) sketch the compound iv) give its point group v) provide a d-orbital splitting diagram indicating the correct symbols for the point group

vi) Indicate if you would predict a Jahn-Teller distortion (no need to distort to splitting diagram)

vii) Indicate whether you would predict any MLCT or LMCT transitions viii) Predict the intensity of any d-d transitions, describing them as weak (ε < 1), moderate (ε =1 – 100), or strong (ε > 100) and explain which selection rules apply. Ligands: ppy = 2-phenylpyridine (chelate), bpy = 2,2’-bipyridine)

e. Ir(ppy)3

f. MnBr4 2−

g. Ti(Oi Pr)4

h. NiCl4 2−

i. cis-Ru(bpy)2Cl2

Answer 1