What absorbs at 1381 cm⁻¹ in an FTIR spectrum?
A band near 1381 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
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 0.9 |
| Carboxyl (COOH) | 2 | 1 | 0.9 |
| Carbohydrate | 1 | 1 | 0.9 |
| Carbonyl (C=O) | 1 | 1 | 0.9 |
| Methyl | 1 | 1 | 0.8 |
| C n single bond | 1 | 0 | 0.9 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
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Alkyl C-H hyder 0.9
“CH groups.”
Bashal 等 - 2022 - Bio-Based (Chitosan-ZnO) Nanocomposite Synthesis, DOI: 10.3390/polym14030386 -
Carbonyl (C=O) hyder 0.9
“Explicit assignment: peaks near 1381 cm-1 belong to stretching vibrations of C=O.”
Chen 等 - 2019 - In Vitro Toxicity Study of a Porous Iron(III) Meta DOI: 10.3390/molecules24071211 -
Carboxyl (COOH) hyder 0.9
“COO- band at 1381 cm-1 or 1439 cm-1”
Eisenhauer 等 - 2012 - In Channelrhodopsin-2 Glu-90 Is Crucial for Ion Se DOI: 10.1002/anie.201107509 -
Alkyl C-H hyder 0.9
“Assigned to symmetric bending mode of CH groups.”
Gisbert-Gonzalez 等 - 2021 - Charge effects on the behavior of CTAB adsorbed on DOI: 10.1016/j.electacta.2021.137737 -
Alkyl C-H hyder 0.9
“Explicit assignment in text”
Khalil 等 - 2021 - Synthesis of Chitosan-La2O3 Nanocomposite and Its DOI: 10.3390/molecules26123689 -
hyder 0.9
“Explicit assignment: 'vibration at 1381 which was assigned as stretching vibration of nitrate anion'”
Lesbani 等 - 2018 - Layered Double Hydroxides MgFe Intercalated H-3[a DOI: 10.1063/1.5082418 -
hyder 0.9
“Band at 1381 attributed to distorting vibration of C-CH3.”
Popa 等 - 2010 - Inclusion and release of theophylline from chitosa DOI: 10.3906/kim-0812-29 -
Carbohydrate hyder 0.9
“Text: 'band at 1381.03 ... was formed due ionization of carboxyl group of polysaccharides'.”
Shende 和 Chidambaram - 2023 - Cocoyam powder extracted from Colocasia antiquorum DOI: 10.1016/j.heliyon.2023.e15228
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.
Dehongli fy sbectrwm