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Comparison of the theoretical and experimental C=NH+ stretching frequencies of two tautomeric imines of clavulanate.
 | ||
|---|---|---|
| F protonated imine |
G protonated imine |
|
|
Theoretical C=NH+ stretch (cm−1) |
1663 | 1648 |
|
Experimental C=NH+ stretch (cm−1) |
1658 | 1649 |
