What absorbs at 983 cm⁻¹ in an FTIR spectrum?
A band near 983 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 |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Sulfate (SO4) | 1 | 1 | 0.8 |
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
-
Acetate 置信度 1.0
“There is no obvious variation of the intensity of the characteristic peak at 983cm-1 assigned to C-O-C group of PFSA-H molecules.”
Lang 等 - 2007 - Preparation and characterization of PVDF-PFSA blen DOI: 10.1016/j.memsci.2006.11.009 -
置信度 1.0
“symmetric S O stretching interface during drying 1 cm-1 peak at 983 decreased until the signal was greatly vibration diminished.”
Simultaneous in situ Kelvin probe and Raman spectroscopy analysis of electrode potentials and molecular structures at polymer covered salt layers on steel DOI: 10.1016/j.electacta.2012.08.042 -
Amide 置信度 1.0
“2 2 1090cm-1 983cm-1 [37, 40], (C-N stretching), (C-H out of”
Sukprasert 等 - 2020 - Synchrotron FTIR Light Reveals Signal Changes of B DOI: 10.1155/2020/6149713 -
置信度 1.0
“983 (m) [Si-O-Ar valence vibration].”
A Non-Hydrolytic Sol–Gel Route to Organic-Inorganic Hybrid Polymers: Linearly Expanded Silica and Silsesquioxanes DOI: 10.3390/gels9040291 -
置信度 1.0
“This may lead to a The change of polarization of the oxygen atom on the Si-O-Al linkage, may cause an increase in the higher wavenumber contribution to the main Si-O band, thus broadening the band around 983 cm-1 remaining Si-O bond strengt”
Insights into the Microstructure of Hydrothermal Synthesized Nanoscale K2O-Al2O3-SiO2-H2O Particles DOI: 10.3390/nano10010063 -
C-O single bond 置信度 1.0
“normalizing the pre-exposure spectrum and the after-exposure spectrum at 1045cm-1 (C-O) stretching in plane (Edwards et al., 2003) and band was assigned to aromatic ether 983cm-1 was referred to the ring breathing stretching (Edwards et al.”
Lorenz 等 - 2022 - Survival of Xanthoria parietina in simulated space DOI: 10.1017/S1473550422000076 -
置信度 1.0
“The 'ideal-case' of the free sulfate ion, belongs to a Td symmetry where a symmetric S-O stretching vibration (ν1) at 983 cm-1 and an asymmetric, triply degenerate S-O stretching vibration (ν3) at 1105 cm-1 are expected in the 800-1500 cm-1”
Marlowe 等 - 2020 - Characterization of Sulfated SnO2-ZrO(2)Catalysts DOI: 10.3390/catal10070726 -
置信度 1.0
“The ATR spectra of the OM P5 and OM P6 samples indicated the presence of barite in cm-1 the upper ground layer, as evidenced by its typical bands at 1173, 1110, 1076, and 983 cm-1 due to the S-O stretching mode and by the doublet at 633 and”
Pintus 等 - 2022 - Multi-Analytical Investigations of Andy Warhol's DOI: 10.3390/polym14030633
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