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Journal of Chemistry
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2022
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Article
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Tab 2
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Research Article
Study of Synthesis, Characterization, DFT, and In Vitro Biological Activity of Cu(II), Co(II), and Fe(II) Metal Complexes Based on Heterocyclic Azo Pyrazole Dye Ligand
Table 2
Important FT-IR spectral bands (cm
−1
) of the HL ligand and its complexes.
Compound
γ
(N-H)
γ
(C=O)
γ
(C=C)
γ
(C=N)
γ
(N=N)
γ
(C-OH)
γ
(M-N)
γ
(M-O)
γ
(M-Cl)
[HL]
3305–3434
1691
1656
1551
1473
1235
—
—
—
[Cu(II)L]
3232–3340
1622
1591
1503
1386
1286
551
619
502
[Co(II)L)]
3244–3392
1627
1595
1501
1382
1289
561
598
439
[Fe(II)L]
3094–3675
1615
1563
1474
1409
1241
543
595
452