Ligand/Chelate

M.wt

colour

Yield (%)

C%

Calc.

C%

Exp.

%H

Calc.

%H

Exp.

%N

Calc.

%N

Exp.

µ BM

Ʌ^*

Schiff base (L¹)

240

Bright yellow

85.00

75.00

72.76

6.60

4.84

11.67

12.77

-

-

[Cr(L¹L²)(OH)₂]・6H₂O

591

Burnt sienna

74.14

42.63

42.23

3.89

3.91

9.47

9.99

3.02

9.35

[Co(L¹L²)(OH)(H₂O)]・6H₂O

506

Burnt umber

76.45

40.90

40.26

3.73

3.13

9.09

8.37

3.79

14.88

[Ni([L¹L²)(OH)(H₂O)]・6H₂O

579

Deep verdant

71.57

43.50

43.40

3.97

3.45

9.67

9.59

2.49

5.48

[Cu(L¹L²)(OH)(H₂O)]・3H₂O

512

Red umber

78.83

49.20

48.09

4.49

4.11

10.93

10.59

1.56

3.55