Imide — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Imide tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Characteristic FTIR peaks for Imide
| Wavenumber (cm⁻¹) | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| 1778 | 3 | 2 | 0.9 |
| 1720 | 2 | 2 | 0.9 |
| 1783 | 2 | 1 | 0.9 |
| 867 | 1 | 1 | 1.0 |
| 738 | 1 | 1 | 1.0 |
| 1690 | 1 | 1 | 0.9 |
| 1715 | 1 | 1 | 0.9 |
| 1770 | 1 | 1 | 0.9 |
| 1772 | 1 | 1 | 0.9 |
| 1717 | 1 | 1 | 0.9 |
| 1733 | 1 | 1 | 0.8 |
| 1700 | 1 | 1 | 0.7 |
| 1750 | 1 | 1 | 0.7 |
| 1350 | 1 | 1 | 0.7 |
| 730 | 1 | 1 | 0.7 |
| 1725 | 1 | 1 | 0.7 |
| 690 | 1 | 1 | 0.6 |
| 1010 | 1 | 1 | 0.6 |
| 1702 | 1 | 0 | 0.9 |
| 1721 | 1 | 0 | 0.9 |
Literature behind these assignments
-
738 cm⁻¹ confidence 1.0
“explicit assignment”
Purushothaman 和 Bilal - 2014 - Development and characterization of homo, co and t DOI: 10.1515/polyeng-2013-0167 -
867 cm⁻¹ confidence 1.0
“Band of unsaturation of maleimide disappeared”
Decostanzi 等 - 2019 - Eugenol-based thermally stable thermosets by Alder DOI: 10.1002/app.39269. -
1778 cm⁻¹ confidence 0.9
“Explicit assignment in text.”
Aly 等 - 2020 - Corrosion Resistance of Mild Steel Coated with Pht DOI: 10.3390/coatings10111114 -
1778 cm⁻¹ confidence 0.9
“Explicit assignment in text: 'imide I band at 1778' and 'asymmetrical C=O stretch vibration'.”
Feng 等 - 2019 - Flame Inhibition and Charring Effect of Aromatic P DOI: 10.3390/polym11010074 -
1770 cm⁻¹ confidence 0.9
“Explicit assignment in text”
Hamciuc 等 - 2021 - Novel PolyimideCopper-Nickel Ferrite Composites w DOI: 10.3390/polym -
1690 cm⁻¹ confidence 0.9
“Explicit assignment: absorption band at 1690 used to evaluate imide groups”
Kaci 等 - 2018 - The Effects of Unmodified Vermiculite on Photooxid DOI: 10.1063/1.5045910 -
1783 cm⁻¹ confidence 0.9
“1783 (symmetric imide stretching)”
Novel organosoluble poly(amide-imide-imide)s synthesized from new tetraimide-dicarboxylic acid by condensation with 4,4′-oxydiphthalic anhydride, 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene, trimellitic anhydride, and various aromatic diamines DOI: 10.1002/app.23364 -
1725 cm⁻¹ confidence 0.7
“Imide band normalized to 1501 cm-1 region, peak at 1725 likely imide.”
Ha 和 West - 2002 - Studies on the photodegradation of polarized UV-ex DOI: 10.1002/app.11315
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