Research Article
Microwave Assisted Synthesis, Spectral and Antifungal Studies of 2-Phenyl-N,N′-bis(pyridin-4-ylcarbonyl)butanediamide Ligand and Its Metal Complexes
Table 3
Relevant IR spectral peaks (cm−1) and their assignments.
| Complexes | N–H | Amide-I C=O | Amide-II C–N, N–H | Amide-III N–H | M–N | M–Cl | M–(CH3COO) | (asym) | (sym) |
| C22H18N4O4 | 3483 | 1645 | 1580 | 1255 | | | | | CoLCl2 | 3250 | 1632 | 1565 | 1232 | 445 | 340 |
— | CoL(CH3COO)2 | 3165 | 1640 | 1552 | 1225 | 456 | — | 1564 | 1325 | NiLCl2 | 3153 | 1638 | 1558 | 1242 | 459 | 354 | — | NiL(CH3COO)2 | 3147 | 1625 | 1569 | 1220 | 454 | — | 1595 | 1315 | CuLCl2 | 3150 | 1630 | 1570 | 1238 | 425 | 350 | — | CuL(CH3COO)2 | 3145 | 1628 | 1563 | 1222 | 432 | — | 1560 | 1330 |
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L = (C22H18N4O4).
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