Table 1 FTIR peaks of meropenem, cefixime and its synthesized complexes
From: Studies on meropenem and cefixime metal ion complexes for antibacterial activity
Functional group | Wave number in cm−1 | ||||||
|---|---|---|---|---|---|---|---|
Stretching | Mero | Mero-Cd | Mero-Ag | Mero-Pd | Mero-Zn | Mero-Ni | Mero-Co |
N–H | 3348 | 3427 | 3427 | 3376 | 3354 | 3346 | – |
Aliphatic C–H | 2935 | 2968 | 2936 | 2970 | 2977 | 2912 | – |
C=C | 985 | 1645 | 1645 | 1634 | 1621 | 1606 | 2977 |
C-O | 1141 | 1149 | 1149 | 1154 | 1174 | 1143 | 1620 |
Stretching | Cef | Cef-Pd | Cef-Ag | Cef-Zn | Cef-Ni | Cef-Cu | Cef-Cd |
|---|---|---|---|---|---|---|---|
–OH | 3580 | – | – | – | – | – | – |
C=O | 1770 | 1720 | 1720–1780 | – | – | 1720–1740 | 1760 |
N–O | 1541.12 | 1540 | 1520–1580 | 1540–1560 | 1520–1560 | 1520 | 1520 |
C–N | 1338.60 | 1340 | 1340–1380 | 1360 | – | 1360–1400 | 1320 |
C–O | 1095.57 | 1080 | 1100 | 1080 | 1080 | 1064.71 | 1040 |
(C=O)–NH | 1670 | 1620 | 1660 | 1620 | 1660 | 1681.93 | 1620 |
C–S | 690–685 | 660 | 680 | 660 | 660 | 620 | 660 |