Answer to Question #118493 in Inorganic Chemistry for Meera

Question

Which of the two chromium complexes shown below will have the greater value of crystal field splitting? Give an explanation to your conclusion.

[Cr(H2O)6]3+, [Cr(CN)6]3-

Answer 1

[Cr(CN)6]3

A higher oxidation state leads to a largersplitting relative to the spherical field. the arrangement of the ligands around the metal ion. the nature of the ligands surrounding the metal ion. The stronger the effect of theligands then the greater the difference between the high and low energy d groups.