Peak assignments in FTIR spectrum of FDCA.
Wavenumber (cm−1) | Assignment |
---|---|
3151–2520 | Stretching O–H carboxylic acid |
1665 | Stretching C O carbonyls |
1570–1416 | Stretching C C aromatics (furan) |
1267–1039 | Stretching C–O carboxylic acid |
960 | Stretching C O, C–C–C bending 2,5 sub-furan ring |
840–760 | Bending C–H alkene (furan) |