What absorbs at 3405 cm⁻¹ in an FTIR spectrum?
A band near 3405 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 8 | 8 | 0,9 |
| N h | 1 | 1 | 0,9 |
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
-
Hydroxyl (O-H) confiance 0,9
“Explicit assignment: 'broad 3405.20 cm-1 eOH announcing presence of group'”
Nagpal 等 - 2018 - Ultrasound, microwave. and Box-Behnken Design amal DOI: 10.1016/j.compag.2017.12.036 -
Hydroxyl (O-H) confiance 0,9
“Explicit assignment in text.”
Sun 等 - 2019 - Pyrolysis characteristics of ethanol swelling Shen DOI: 10.1016/j.jaap.2018.12.012 -
Hydroxyl (O-H) confiance 0,9
“Explicit assignment: 'O-H stretching at 3405'.”
Kanbar 和 Kaouk - 2019 - Mineral and chemical changes of sediments after Cu DOI: 10.1016/j.chemosphere.2019.124393 -
Hydroxyl (O-H) confiance 0,9
“Explicit assignment: 'angular deformation of O-H and N-H' at 3405 cm-1.”
Mi 等 - 2020 - Modification of Hydroxypropyltrimethyl Ammonium Ch DOI: 10.3390/polym12112460 -
Hydroxyl (O-H) confiance 0,9
“Stretching vibrations of OH groups in water molecules.”
Norman 等 - 2016 - Sodium Copper Chlorophyllin Immobilization onto Hi DOI: 10.3390/ijms17101564 -
confiance 0,9
“Strain band attributed to OH vibrations of clay hydration water”
Turki 等 - 2022 - Environmental Application of Acid Activated Kaolin DOI: 10.21203/rs.3.rs-809851/v1 -
Hydroxyl (O-H) confiance 0,9
“Explicit assignment: broad absorption at 3405.03 cm-1 corresponds to O-H stretching.”
Yang 等 - 2018 - Structural Characterization and Antitumor Activity DOI: 10.1155/2018/9579262 -
Hydroxyl (O-H) confiance 0,8
“Attributed to OH stretching vibrations from gypsum.”
Damjanovic 等 - 2015 - Spectroscopic investigation of two Serbian icons p DOI: 10.2298/JSC140722099D
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