What absorbs at 1330 cm⁻¹ in an FTIR spectrum?
A band near 1330 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 8 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Alkyl C-H | 2 | 1 | 0,9 |
| Hydroxyl (O-H) | 2 | 1 | 0,9 |
| S eq o | 1 | 1 | 0,9 |
| Ring structure | 1 | 1 | 0,9 |
| Methyl | 1 | 1 | 0,9 |
| Lignin | 1 | 1 | 0,9 |
| Amide | 1 | 1 | 0,8 |
| N h | 1 | 1 | 0,7 |
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
-
confiance 1,0
“Text: 'syringyl ring breathing with C-O stretching at 1330'”
Zhang 和 Zhou - 2022 - Industrial lignins the potential for efficient re DOI: 10.21203/rs.3.rs-453856/v1 -
Lignin confiance 0,9
“Text: 'lignin peaks at 1505 and 1330 for beech'.”
Pandey 和 Pitman - 2004 - Examination of the lignin content in a softwood an DOI: 10.1002/pola.20071 -
confiance 0,9
“Text: 'two characteristic peaks at ~1330 (D band)'”
Liu 等 - 2020 - Influences of Ash-Existing Environments and Coal S DOI: 10.3390/pr8111367 -
Methyl confiance 0,9
“Explicit assignment: 'peaks at 1330 and 1377 were assigned to the CH3 symmetrical deformation mode'.”
Nasikhudin 等 - 2016 - Preparation of PVAChitosanTiO2 Nanofibers using DOI: 10.1063/1.4958575 -
Ring structure confiance 0,9
“Text: 'Ring stretch, 1329.5 vs 1355'.”
Pagacz-Kostrzewa 等 - 2022 - Structure, Spectra and Photochemistry of 2-Amino-4 DOI: 10.3390/molecules27123897 -
confiance 0,9
“Explicit assignment in text: 'Peak 9 at 1,330 (1,320) cm-1, which indicates syringyl ring breathing with CO stretching'”
Rana 等 - 2010 - FTIR spectroscopy, chemical and histochemical char DOI: 10.1007/s00226-009-0281-2) -
S eq o confiance 0,9
“Explicit assignment in table: 'S=O asymmetric stretching 1330'”
Yadav 和 Urade - 2019 - Formulation and Evaluation of Chitosan Based Trans DOI: 10.5530/ijper.53.1.12 -
Alkyl C-H confiance 0,8
“Peaks at 1330 and 1380 assigned to CH stretch.”
Selvi 等 - 2017 - Synthesis, Structural, Optical, Electrical and The DOI: 10.1007/s10904-017-0662-1
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