What absorbs at 2019 cm⁻¹ in an FTIR spectrum?
A band near 2019 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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| C c single bond | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| S eq o | 1 | 1 | 1.0 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
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置信度 1.0
“ao, Moraes, Souza, Carciofi, Laurindo, of 1800 to 800 was used for PLSR analysis since the band is re2019) were found to produce fruit leather with high quality in sensory ported to greatly correlated with functional groups (Baum et al., 20”
Chemical versus infrared spectroscopic measurements of quality attributes of sun or oven dried fruit leathers from apple, plum and apple-plum mixture DOI: 10.1016/j.lwt.2021.112420 -
S eq o 置信度 1.0
“Influence of HCl, KOH and acetolysis cm-1 Meanwhile, considering that the peak around 1,150 was also treatments on sporopollenin correlated with S=O stretch vibrations (Oh and Baiz, 2019), the”
Influence of common palynological extraction treatments on ultraviolet absorbing compounds (UACs) in sub-fossil pollen and spores observed in FTIR spectra DOI: 10.3389/fevo.2023.1096099 -
置信度 1.0
“There cm-1 was also slight shift of peaks to a higher wavenumber at 1065 after Cu and Fe impregnation on ZSM-5 and HZSM-5 in the absorption band ascribed to internal asymmetric stretch of extremely Catalysts 2019, 9, x FOR PEER REVIEW”
Hydroprocessing of Oleic Acid for Production of Jet-Fuel Range Hydrocarbons over Cu and FeCu Catalysts DOI: 10.3390/catal9121051 -
C-O single bond 置信度 1.0
“A noteworthy observation is the degradation of the polymeric side chain which is apparent from decrease of the absorption at 1240 cm-1 attributed to the asymmetric stretching vibration C-O-C Coatings2019,9,121 6of13”
Evaluation of the Impacts of Four Weathering Methods on Two Acrylic Paints: Showcasing Distinctions and Particularities DOI: 10.3390/coatings9020121 -
C c single bond 置信度 1.0
“Due to the simpler liking point between the Downloaded propyl chain and the aryl-sulfonic moieties, in this spectrum, the low frequency region appears poorer in signals, with a cm-1, sharp band centred at 1500 related to the C-C stretching”
Erigoni 等 - 2019 - Acid properties of organosiliceous hybrid material DOI: 10.1039/C9CY01609K. -
C c single bond 置信度 1.0
“The peaks of 1071 and 1022 correspond to the aromatic C-C stretching vibration Sensors 2019, 19, x FOR PEER REVIEW 5 of 13 cm-1 characteristic for the C=C bonds in CNTs, and 1468 cm-1 is due to the C-O carboxylate anion mode.”
Ionete 等 - 2019 - A Room Temperature Gas Sensor Based on Sulfonated DOI: 10.3390/s19051116 -
Carbonyl (C=O) 置信度 1.0
“cm-1 (1793 disappear, and a couple of bands at 2019 and 2079 are retained, which carbonyl ligands (1793 cm-1) disappear, and a couple of bands at 2019 and 2079 cm-1 are indicates the stable anchoring of rhodium carbonyl complexes.”
Kardasheva 等 - 2023 - Hydroformylation of Alkenes over Phosphorous-Free DOI: 10.3390/catal13050818 -
Alkyl C-H 置信度 1.0
“(=C-H (C=C stretching vibrations), 1350 cm-1 (C=N stretching vibrations), and 760 cm-1 (=C-H bending stretching vibrations), 1350 stretching vibrations), and 760 bending vibrations) (C=C stretching vibrations), 1350 cm-1 (C=N stretching vib”
Application of FTIR Method for the Assessment of Immobilization of Active Substances in the Matrix of Biomedical Materials DOI: 10.3390/ma12182972
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