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Bioinorganic Chemistry and Applications
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Bioinorganic Chemistry and Applications
/
2012
/
Article
/
Tab 1
/
Research Article
Spectroscopic, Thermal, and Antimicrobial Studies of Co(II), Ni(II), Cu(II), and Zn(II) Complexes Derived from Bidentate Ligands Containing N and S Donor Atoms
Table 1
1
H NMR and
13
C NMR spectral data of Schiff bases and their metal complexes.
Compounds
1
H NMR (DMSO-d
6
) (ppm)
13
C NMR (DMSO-d
6
) (ppm)
HL
1
C
7
H
5
N
5
O
3
S
7.55 (d, 1H, Ar–H), 7.84 (d, 1H, Ar–H),
8.97 (s, triazole–H), 9.86 (s, 1H, –N=CH–),
14.10 (s, 1H, –SH)
114.37, 120.34, 139.44, 146.98, 149.43, 152.12 (Aromatic), 163.34 (–N=CH–)
Zn(L
1
)
2
·2H
2
O
7.42 (d, 2H, Ar–H), 7.66 (d, 2H, Ar–H), 9.05
(s, 2H, triazole–H), 10.12 (s, 2H, –N=CH–)
114.31, 121.02, 139.28, 146.76, 150.22, 152.38 (Aromatic), 171.18 (–N=CH–)
HL
2
0.93 (t, 3H, –CH
3
), 1.66 (m, 2H, –CH
2
–), 2.69
(t, 2H, –CH
2
–), 7.63 (d, 1H, Ar–H),
7.84 (d, 1H, Ar–H), 10.42 (s, 1H, –N=CH–),
13.91 (s, 1H, –SH)
13.84 (–CH
3
), 19.21 (–CH
2
–), 26.69 (–CH
2
–), 114.32, 120.4, 148.28, 149.50, 151.97, 153.52 (Aromatic), 161.9 (–N=CH–)
Zn(L
2
)
2
·2H
2
O
0.80 (t, 6H, –CH
3
), 1.57 (m, 4H, –CH
2
–), 2.63
(t, 4H, –CH
2
–), 7.69 (d, 2H, Ar–H), 7.85
(d, 2H, Ar–H), 10.83 (s, 2H, –N=CH–)
13.74 (–CH
3
), 19.63 (–CH
2
–), 26.79 (–CH
2
–), 114.22, 121.5, 148.75, 152.87, 153.50, 153.70 (Aromatic), 169.72 (–N=CH–)