For example: In M(^3+)VO4 (M = transition metal, Fe, Cr, .....) there are M^(3+)O6 octahedral group surrounded by (VO4)^3- tetrahedral group by corner shearing. Therefore, Is the crystal field splitting expected in M^(3+) ions? or not. It is noted that the distance between M^3+ and VO4)^3- are not the same for all.