Research Article
Spectroscopic Characterization of Omeprazole and Its Salts
Table 3
Calculated stretching and deformation modes of OMP polar groups.
| Group | Frequency (cmā1) |
| C-OCH3 (pyridine) | 1423, 1181, 1013 | C-OCH3 | 1442, 1060, 988 | N=C-C-CH3 | 1547, 1411, 1250 | HN-C-S | 3015, 1570, 1411, 1182 | N=C-S | 1411, 1182 | S=O | 978, 618, 422, 381 |
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