What absorbs at 2939 cm⁻¹ in an FTIR spectrum?
A band near 2939 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
Mulige funktionelle gruppetildelinger
| Funktionel gruppe | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| Alkyl C-H | 8 | 7 | 0,9 |
| Carbonyl (C=O) | 1 | 1 | 0,7 |
| C-O single bond | 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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Alkyl C-H tillid 0,9
“Explicit assignment in text.”
Abead 等 - 2023 - Study physical characteristics of Polyvinyl Alcoho DOI: 10.15764/pche.2014.02001. -
Alkyl C-H tillid 0,9
“Corresponding to C-H”
Alhendi 等 - 2022 - Structural Conformation Comparison of Different Cl DOI: 10.3390/dj10050073 -
Alkyl C-H tillid 0,9
“asymmetric CH2 stretching”
Belo 等 - 2018 - Development of a Black Liquor Electrolyzer for Lig DOI: 10.1149/08604.0003ecst -
Alkyl C-H tillid 0,8
“Resultant band from 2971 and 2876.”
Zdravkovic 等 - 2017 - The evaluation of temperature and pH influences on DOI: 10.2298/HEMIND161018001Z -
Alkyl C-H tillid 0,7
“FTIR peaks at 2939 indicate strong stretching amine salt.”
Chowdhury 等 - 2023 - Green synthesis and characterization of zirconium DOI: 10.1016/j.heliyon.2022.e12711 -
Alkyl C-H tillid 0,7
“Indicates CH stretch vibrations.”
Jaganathan 等 - 2019 - Blood compatibility assessments of electrospun pol DOI: 10.1590/0001-3765201920190018 -
Carbonyl (C=O) tillid 0,7
“Attributed to carbonyl (CH) stretch.”
Jaganathan 等 - 2017 - Manufacturing and Characterization of Novel Electr DOI: 10.3390/polym9050163 -
Alkyl C-H tillid 0,7
“Wavelength region at 2939 cm-1 associated with CH group.”
Mokhtar 等 - 2023 - Phytochemical Screening and Antimicrobial Activity DOI: 10.3390/life13071451
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