What absorbs at 1138 cm⁻¹ in an FTIR spectrum?
A band near 1138 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 |
|---|---|---|---|
| Metal oxygen | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 2 | 2 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Thiol | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Amide | 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
-
Acetate 置信度 1.0
“cm-1 strong band at 792 Bands at 1138 and 610 are assigned to C-O and 2 3 m Ti-O, respectively.”
Errington 等 - 2010 - Synthesis and Structure of the Alkoxido-Titanium P DOI: 10.1007/s10876-010-0329-3 -
Amide 置信度 1.0
“*** II/COO(cid:3) Amide stretching 1188.83±0.08 1195.40±0.05 0.466±0.025 0.324±0.011 *** *** II/COO(cid:3) Amide stretching 1137.97±0.14 1141.26±0.12 0.649±0.012 0.275±0.010 II/COO(cid:3) Amide stretching 1065.34±0.23 1.084±0.012”
Differentiation in MALDI-TOF MS and FTIR spectra between two pathovars of Xanthomonas oryzae DOI: 10.1016/j.saa.2014.06.056 -
Acetate 置信度 1.0
“The ratio A/B also increases for all the 1297 associated with chain vibrations, and the cm-1 cm-1 films, treated as there exist more non-hydrogen-bonded bands at 1138 and 832 assigned to the asymunmodified C-O-C carbonyls, in comparison to”
Effect of PEG grafting density on surface properties of polyurethane substrata and the viability of osteoblast and fibroblast cells DOI: 10.1007/s10856-022-06668-1 -
Phosphate (PO4) 置信度 1.0
“12, the bands at 1138 and 1059 are P-O-C assigned to the stretching vibration of and PO 2/PO 3”
Functional group effect on flame retardancy, thermal, and mechanical properties of organophosphorus-based magnesium oxysulfate whiskers as a flame retardant in polypropylene DOI: 10.1039/c7ra02863f -
置信度 1.0
“Moreover, the bands at 1009, 1122, and at 1138cm-1 region [21, 22], absorption peaks related to Er doping in were ascribed to stretching of Ti-O-C [17].”
Gokdemir 等 - 2014 - Structural Modification of Sol-Gel Synthesized V2O DOI: 10.1155/2014/795384 -
Hydroxyl (O-H) 置信度 1.0
“cm-1), cm-1), biomarkers were (~980 Oligosaccharide C-OH stretching band (~1138 IntegrativeBiologyAcceptedManuscript cm-1), cm-1), Deoxyribose (~1188 Amide III (~1242 In-plane CH bending vibration from the”
Jin 等 - 2017 - Fingerprinting microbiomes towards screening for m DOI: 10.1039/C7IB00009J. -
Thiol 置信度 1.0
“in the intensity of this band correlates with one of 1138 Thus, it is obviously that this band is associated with n(SH) coordinated H 2S.”
Martirosyan 等 - 2021 - Low Temperature Spectroscopic Study of the Sulfide DOI: 10.6060/mhc214035m -
置信度 0.5
“From table 1, incomplete assignment”
Antioxidant and antidiabetic properties of biocompatible ceria oxide (CeO2) nanoparticles in mouse fibroblast NIH3T3 and insulin resistant HepG2 cells DOI: 10.1016/j.ceramint.2020.11.230
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