What absorbs at 3223 cm⁻¹ in an FTIR spectrum?
A band near 3223 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 4 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 2 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Hydrogen bond | 1 | 1 | 1,0 |
Le classement reflète les preuves bibliographiques accumulées, et non une règle faisant autorité. Confirmez toujours dans le contexte de votre échantillon.
Bibliographie derrière ces attributions
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Hydrogen bond confiance 1,0
“In this experiment the band at 3223 which is usually however this may be related to the precision of the mass balance interpreted as a more highly ordered hydrogen bonding network, used (readability to four decimal places).”
Time series Fourier transform infrared spectroscopy for characterization of water vapor sorption in hydrophilic and hydrophobic polymeric films DOI: 10.1016/j.saa.2020.119371 -
Hydroxyl (O-H) confiance 1,0
“A strong band at 3223 results from O-H stretching of the cm-1 non-substituted hydroxyl groups of cellulose.”
Ahmed 等 - 2021 - STRUCTURAL AND OPTICAL CHARACTERISTICS OF POLY(VIN DOI: 10.4314/bcse.v35i3.12 -
Alkyl C-H confiance 1,0
“Spectrum of GZ showed prominent -OH cm-1, C-H stretching band at stretching band at 3223.05 cm-1, cm-1 2875.86 and -C=O stretching peak 2947.23 cm-1, C=C stretching vibration at 1656.85 at 1722.43”
Harwansh 和 Deshmukh - 2021 - Formulation and Evaluation of Sodium Alginate and DOI: 10.5530/ijper.55.3.145 -
Hydroxyl (O-H) confiance 1,0
“The first strong FTIR - 3223cm-1 OD control OD sample is due to O-H stretching of absorption band at × 100.”
Riyajan 和 Nuim - 2013 - Interaction of Green Polymer Blend of Modified Sod DOI: 10.1155/2013/364253
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