The d-Orbital Energy Levels in Crystal Fields of Different Symmetries (in terms of Dqo)

CN
Structure
dx2-y2
dz2
dxy
dxz
dyz
2
lineara
-6.28
10.28
-6.28
1.14
1.14
3
trigonalb
5.46
-3.21
5.46
-3.86
-3.86
4
tetrahedral
-2.67
-2.67
1.78
1.78
1.78
4
square planarb
12.28
-4.28
2.28
-5.14
-5.14
5
trigonal bipyramidc
0.82
7.07
-0.82
-2.72
-2.72
5
square pyramidc
9.14
0.86
-0.86
-4.57
-4.57
6
octahedron
6.00
6.00
-4.00
-4.00
-4.00


aBonds lie along the z axis.

bBonds lie in the xy plane

cPyramid base in the xy plane


From "Theoretical Inorganic Chemistry," by M. Clyde Day, Jr. and Joel Selbin, Reinhold Publishing Corp., New York, NY (1962_ p. 292.