Make your own free website on Tripod.com
TABLES FOR USE WITH TANABE-SUGANO DIAGRAMS

10 Dqo = Δo = f x g

TABLE 17.1 Values of f and g for estimating 10 Dqo and of h and k for estimating β

Ligand
f
h
Metal ion
g x 10-3 cm-1
k
Br-
0.72
2.3
Mn2+
8.0
0.07
-SCN-
0.75
-
Ni2+
8.7
0.12
Cl-
0.78
2.0
Co2+
9.0
0.09
OPCl3
0.82
-
V2+
12.0
0.08
N3-
0.83
-
Fe3+
14.0
0.24
F-
0.90
0.80
Cu3+
15.7
-
OSMe2
0.91
-
Cr3+
17.4
0.21
OCMe2
0.92
1.2
Co3+
18.2
0.35
EtOH
0.97
-
Ru2+
20
-
Me2NCHO
0.98
-
Ag3+
20.4
-
C2O42-
0.99
1.5
Ni4+
22
-
H2O
1.00
1.0
Mn4+
24
0.50
SC(NH2)2
1.01
2.0
Mo3+
24.6
0.15
-NCS-
1.02
-
Rh3+
27
0.30
-NCSe-
1.03
-
Pd4+
29
-
-NH2CH2CO2--
1.18
2.0
Tc4+
31
-
CH3CN
1.22
-
Ir3+
32
0.30
C5H5
1.23
-
Pt4+
36
0.50
NH3
1.25
1.4
Fe2+
8.5
0.08
H2NCH2CH2NH2
1.28
1.5
-
-
-
-SO32-
1.2
-
-
-
-
diars
1.33
-
-
-
-
dipy
1.33
-
-
-
-
-NO2-
1.4
-
-
-
-
CN-
1.7
2.0
-
-
-

[C. K. Jorgensen, "Modern Aspects of Ligand Field Theory," pp.347-348, American Elsevier, New York, 1971; C. K. Jorgensen, "Absorption Spectra and Chemical Bonding in Complexes," p. 113, Pergamon, Oxford, 1962.]

β = Bcomplex/Bfree ion = 1- (h x k)

TABLE 17.2 Free-ion values for B for transition metal ions (in cm-1)

Metal
M2+
M3+
Ti
695
-
V
755
861
Cr
810
918
Mn
860
965
Fe
917
1015
Co
971
1065
Ni
1030
1115