What absorbs at 2992 cm⁻¹ in an FTIR spectrum?
A band near 2992 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 5 cited sources
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| Lipid | 1 | 1 | 0.9 |
| Methyl | 1 | 1 | 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
-
Alkyl C-H hyder 1.0
“Explicit assignment: 'peak at 2992 cm-1 vibrations of C-H'”
Jadhav 和 Jadhav - 2021 - Graft copolymerization of methyl methacrylate onMe DOI: 10.1007/s13726-020-00869-7 -
Alkyl C-H hyder 0.95
“Explicit assignment in text: 'FTIR peak area 2992cm-1 ... corresponding to the C-H stretching'”
Peruchon 等 - 2008 - Characterization of self-cleaning glasses using La DOI: 10.1016/j.jphotochem.2007.12.033 -
Methyl hyder 0.9
“Explicit assignment: CH3 asymmetric stretching”
Ge 等 - 2014 - Differentiation in MALDI-TOF MS and FTIR spectra b DOI: 10.1016/j.saa.2014.06.056 -
Alkyl C-H hyder 0.9
“Explicit assignment: 'observed at 2992 are attributed to aliphatic C-H'”
Erol 等 - 2023 - ZnO-containing nanocomposites produced from Mentha DOI: 10.1007/s10965-023-03461-8 -
Lipid hyder 0.9
“Text: 'lipid (2813-2992'”
Srisongkram 等 - 2020 - Evaluation of Melanoma (SK-MEL-2) Cell Growth betw DOI: 10.3390/ijms21114141
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