The table shows some infrared absorption ranges from the Chemistry Data Sheet.
| Bond | Wavenumber / cm-1 |
|---|---|
| O-H (alcohols) | 3230-3550 |
| O-H (carboxylic acids) | 2500-3000 |
| C=O | 1680-1750 |
| C=C | 1620-1680 |
An organic compound shows a strong absorption at 1715 cm-1 and no absorption between 3230 and 3550 cm-1.
Identify the bond responsible for the absorption at 1715 cm-1.
[1]
Deduce what the absence of an absorption between 3230 and 3550 cm-1 tells you about the compound.
[1]