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Bioinorganic Chemistry and Applications
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Special Issues
Bioinorganic Chemistry and Applications
/
2011
/
Article
/
Tab 4
/
Research Article
Metal-Based Biologically Active Compounds: Synthesis, Spectral, and Antimicrobial Studies of Cobalt, Nickel, Copper, and Zinc Complexes of Triazole-Derived Schiff Bases
Table 4
Thermoanalytical results (TG) of the metal complexes.
Compound
Steps
Temp. (°C)
TG mass%
Assignments
Calcd.
Found
Cu(L
2
)
2
1st
2nd
3rd
80–305
305–505
505–695
47.90
21.26
21.26
11.98
45.29
20.27
20.05
15.16
−C
14
H
8
Cl
4
(organic moiety)
−C
4
H
5
N
4
S (triazole ring)
−C
4
H
5
N
4
S (triazole ring)
−CuO (residue)
Zn(L
1
)
2
·2H
2
O
1st
2nd
3rd
80–230
230–560
560–700
5.37
51.30
33.73
11.90
4.98
51.50
31.12
12.40
−H
4
O
2
(two water molecule)
−C
14
H
8
Cl
4
N
2
(organic moiety)
−C
6
H
6
N
6
S
2
(triazole ring)
−ZnO (residue)