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Journal of Chemistry
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2019
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Article
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Tab 3
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Research Article
Synthesis, Characterization, and Antibacterial Activities of 1H-Imidazo [5, 6-f] [1,10] Phenanthroline-2(3H)-Thione and Its Ni(II) and Cu(II) Complexes
Table 3
Major IR spectral frequencies of the ligand and its complexes.
Compound
(N-H) cm
−1
(O-H) cm
−1
(C-H) cm
−1
(C=O) cm
−1
(C=N) cm
−1
(phenring)
(C=C) cm
−1
(C-N) cm
−1
(C=S) cm
−1
(C-H) bending cm
−1
(M-N) cm
−1
L[C
13
H
8
N
4
S]
3433b
—
2972–2713w
—
1617s
1422s
1315s
1019s
731s
—
[NiC
26
H
20
N
8
O
4
]Cl
2
—
3232s,b
—
1701w
1626s
1426s
1319w
—
730s
616w
[CuC
26
H
20
N
8
O
4
]Cl
2
—
3378s,b
3074w
1698s
1630s
1430s
1301m
—
725s
548w
b = broad; s = strong; m = medium; w = weak.