Table 2.
Assignments of infrared spectral bands for STG and its complexity.
| Assignments | Compounds | ||
|---|---|---|---|
| STG | Mn(II) | Co(II) | |
| N–H stretching | 3357 | 3300 | 3331 |
| C–H stretching | 3059 2917 2850 |
2920 2856 |
2917 2849 |
| C=O stretching | 1669 | 1637 | 1638 |
| C=N stretching | 1633 | 1633 | 1633 |
| NH2 bending | 1609 | - | - |
| C–C and C–N stretching | 1556 1514 1426 |
1518 | 1517 1428 |
| CH in plane bending | 1324 1274 |
1334 1316 1275 |
1333 1276 |
| C–F stretching | 1330 1267 1146 |
1331 1269 1140 |
1332 1270 1139 |
| CH out-of-plane bending | 915 880 841 720 |
887 840 663 |
887 |
| M–O stretching | - | 660 | 666 |
| M–N stretching | - | 560 | 558 |