What absorbs at 3480 cm⁻¹ in an FTIR spectrum?
A band near 3480 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 6 cited sources
Mulige funktionelle gruppetildelinger
| Funktionel gruppe | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 3 | 0,9 |
| N h | 1 | 1 | 0,9 |
| Carboxyl (COOH) | 1 | 0 | 0,8 |
Rangering afspejler akkumulerede litteraturbeviser, ikke en enkelt autoritativ regel. Bekræft altid mod din prøvekontekst.
Litteratur bag disse tildelinger
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tillid 1,0
“Explicit: 'a positive band centered at 3480 cm-1 ... referred as solvent-shared ion-pair'.”
Ashraf 等 - 2021 - Identification and properties of ion-pairs in the DOI: 10.1016/j.molliq.2020.114891 -
Hydroxyl (O-H) tillid 0,9
“OH stretching region for hydroxyledgrewite”
Galuskin 等 - 2012 - Edgrewite Ca-9(SiO4)(4)F-2-hydroxyledgrewite Ca-9( DOI: 10.2138/am.2012.4161 -
Hydroxyl (O-H) tillid 0,9
“Explicit assignment: 'O-H stretching mode at 3480 cm-1'”
Takiwatari 等 - 2010 - Stabilisation of hydrogen bonding in polypropylene DOI: 10.1002/ls.132 -
Hydroxyl (O-H) tillid 0,9
“Explicitly assigned to -OH stretch.”
Douroumis 等 - 2007 - Physicochemical characterization of solid dispersi DOI: 10.1211/jpp.59.5.0004 -
N h tillid 0,9
“Peak at 3480 cm-1 assigned to N-H stretching.”
Suhail 等 - 2020 - Using Carbomer-Based Hydrogels for Control the Rel DOI: 10.3390/ph13110399 -
tillid 0,7
“Described as broad absorption peak.”
Habibi 和 Mardani - 2015 - Effect of annealing temperature on optical propert DOI: 10.1016/j.saa.2014.08.031
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