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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Hydroxyl (O-H) | 8 | 8 | 0.9 |
| N h | 1 | 1 | 0.9 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Hydroxyl (O-H) 置信度 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) 置信度 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) 置信度 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) 置信度 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) 置信度 0.9
“Stretching vibrations of OH groups in water molecules.”
Norman 等 - 2016 - Sodium Copper Chlorophyllin Immobilization onto Hi DOI: 10.3390/ijms17101564 -
置信度 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) 置信度 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) 置信度 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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