What absorbs at 2866 cm⁻¹ in an FTIR spectrum?
A band near 2866 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
Возможные назначения функциональных групп
| Функциональная группа | Подтверждающие факты | Цитируемые источники | Максимальная достоверность |
|---|---|---|---|
| Alkyl C-H | 11 | 11 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Hydrogen bond | 1 | 1 | 1,0 |
Ранжирование отражает накопленные литературные данные, а не единственное авторитетное правило. Всегда проверяйте в контексте вашего образца.
Литература, лежащая в основе этих назначений
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Alkyl C-H достоверность 1,0
“cm-1 peaks at 2865.67 and 2918.4 corresponding to stretching vibration of C H bonds in the high frequency area together cm-1 with a sharp peak at 1465.95 corresponding to the bending vibration of C H groups of water molecules adsorbed cm-1”
Production of graphene powder by electrochemical exfoliation of graphite electrodes immersed in aqueous solution DOI: 10.1016/j.ijleo.2016.04.101 -
достоверность 1,0
“Explicit assignment in text”
Lu 和 Mi - 2005 - Characterization of the interfacial interaction be DOI: 10.1021/ma0486896 -
Alkyl C-H достоверность 1,0
“In addition, the presence of the C-H stretching at 2931 cm-1 and 2866 cm-1, C=O urethane linkage [33].”
Self-Healable Supramolecular Vanadium Pentoxide Reinforced Polydimethylsiloxane-Graft- Polyurethane Composites DOI: 10.3390/polym11010041 -
Acetate достоверность 1,0
“cm-1 cm-1, C=O (symmetric), stretching at 1721 at 2866 cm-1, C-O-C stretching C-C and C-O stretching at 1721”
Preparation of electrospun polycaprolactone nanofiber mats loaded with microalgal extracts DOI: 10.1002/elsc.201900009 -
Alkyl C-H достоверность 1,0
“cm-1 C-H asymmetric stretching), 2929 (methylene C-H peak near 122.1 (cid:3)C does not vary with the mass ratio of cm-1 asymmetric stretching), 2866 (methyl and methylene LOV and indicates the temperature of the eutectic reaction: cm-1 C-H”
Gorniak 等 - 2016 - Thermal, spectroscopic and dissolution studies of DOI: 10.1007/s10973-016-5279-z -
Alkyl C-H достоверность 1,0
“cm-1 cm-1 cm-1 bands at 2945 (asym CH stretch), 2866 (sym CH stretch), 1730 (ester C = O 2 2 cm-1 stretch), and 1060-1150 (asym C-O-C stretch) [36].”
Adapalene-loaded poly(#_#x03B5;-caprolactone) microparticles: Physicochemical characterization and in vitro penetration by photoacoustic spectroscopy DOI: 10.1371/journal. -
Alkyl C-H достоверность 1,0
“region arising from C-H stretching of aromatic 2866 and cm-1 compound.”
Antibacterial Potential of Bacterial Cellulose Impregnated with Green Synthesized Silver Nanoparticle Against S. aureus and P. aeruginosa DOI: 10.1007/s00284-023-03182-7 -
Alkyl C-H достоверность 1,0
“The positive band at cm-1 cm-1 2993-2995 and the negative band at 2866 (C-H stretching region) demonstrated the difference between normal colon tissues and polyps in the contributions of various”
Ex Vivo Vibration Spectroscopic Analysis of Colorectal Polyps for the Early Diagnosis of Colorectal Carcinoma DOI: 10.3390/diagnostics11112048
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