Question

Copy Resize . Select Brushes Size Color Color Image Tools Shapes Colors Agilent Technologies IR_ASPIRIN Sample 10: 2018-10-09T09-04-34 Method Name: Organic Lab ATR pmple Scans: 8 User: Admin pkground Scans: B Date/Time: 10/9/2018 9:03:52AM Resolution: 4cm-1 OOH Range: 4,000.00 - 650.00 ystem Status: Good Apodization: Happ-Genzel File Location: C:\Program Files\Agilent\MicroLab PC Results 2018-10-09T09-04-34.a21 (012 3000 3000 2500 Wavenumber (cm-1) 25001 2000 500px 191343 * 762px A Size: 79.5KB

Can you please label the functional groups on both the structure, and on the actual spectrum.

Answer 1

Good question

The given compound will have two functional groups signal.

COOH group also known as carboxylic acid group has hydrogen bonding due to OH group presence. Therefore it will appear at 2918 as broad peak. There will be intra molecular hydrogen bonding with O atom of ester group.

Another functional group is ester which contains C=O and will appear as sharp peak at 1752 cm-1. The peak near to 1700 corresponds to C=O of COOH group.

The aromatic C=C appear at 1609-1450 cm-1 and C-H appear at 2900 cm-1.

The C-O will appear at

That are the given functional group.