What absorbs at 3442 cm⁻¹ in an FTIR spectrum?
A band near 3442 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) | 10 | 10 | 0.9 |
| Alkene (C=C) | 1 | 1 | 0.9 |
| Hydrogen bond | 1 | 1 | 0.7 |
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
-
置信度 1.0
“Assigned to hydrogen-bonded hydroxyls in text.”
Song 等 - 2020 - How the hindered amines affect the microstructure DOI: 10.1515/spma-2019-0001 -
Alkene (C=C) 置信度 0.9
“Text states 'no double bond absorption peak at 3442 cm-1'.”
Manaf 等 - 2017 - Synthesis and micowave characterization of conduct DOI: 10.1088/1757-899X/223/1/012051 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'O-H stretching vibration at 3441.77 cm-1'.”
Rajashekara 等 - 2020 - Biomedical Applications of Biogenic Zinc Oxide Nan DOI: 10.1007/s12668-020-00746-w -
Hydroxyl (O-H) 置信度 0.9
“Band peak at 3442 cm-1 indicated O-H stretching vibration hydroxyl.”
Alfattani 等 - 2022 - Bio-Char Characterization Produced from Walnut She DOI: 10.3390/en15010001 -
Hydroxyl (O-H) 置信度 0.9
“Text: 'broad peak with maximum at 3442 ... stretching vibrations of hydroxyl groups'”
Czaplicka 等 - 2018 - The interaction between atrazine and the mineral h DOI: 10.1007/s11368-017-1843-9 -
Hydroxyl (O-H) 置信度 0.9
“Text: '3442 (3200-3550 attributed to the O-H'.”
Didar - 2021 - Enrichment of dark chocolate with vitamin D-3(free DOI: 10.1007/s13197-020-04810-x -
Hydroxyl (O-H) 置信度 0.9
“Broad absorption band for hydroxyl (OH) at 3442 cm-1.”
Murphy 等 - 2022 - Assessment of microplastics in Irish river sedimen DOI: 10.1016/j.heliyon.2022.e09853 -
Hydroxyl (O-H) 置信度 0.9
“Explicitly stated 'related to O-H st' (stretch).”
Sedky 等 - 2022 - Structural, FTIR, optical and dielectric propertie DOI: 10.21203/rs.3.rs-1211609/v1
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