Compounds

n max(cm-1)

Assignment

µeff B.M

 

1

16,129
25,125
35,211

d-d transition
n→π* transition
π→π* transiton

 

4.43

 

2

 

17,543
27,777
35,971

 

d-d transition
n→π* transition
π→π* transition

 

2.10

 

3

 

15,337
21,186
34,482

 

d-d transition
n→π* transition
π→π* transition

 

1.90

 

4

 

27,472
39,682

 

n→π* transition
π→π* transition

 

-

 

 

5

 

14,752
27,322
39,525

 

d-d transition
n →π* transition
π→π* transition

 

-

Table 1: Electronic spectral data and magnetic moments of the compounds.