What absorbs at 851 cm⁻¹ in an FTIR spectrum?
A band near 851 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| Metal oxygen | 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 |
| Carbonate | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Alkyl C-H 信心 1.0
“FTIR spectra of starch typically demonstrates bands at 1100-900 (C-O-H Pre-proof cm-1 bending and stretch vibration), 1100-1150 (C-O, C-C and C-O-H stretching), 840 and cm-1 cm-1 1077 (CH 2-O-CH stretching vibration), 851 (skeletal stretchi”
Pourmohammadi 和 Abedi - 2020 - The effect of pre and post-ultrasonication on the DOI: 10.1016/j.ijbiomac.2020.06.205 -
C c single bond 信心 1.0
“The vibrational peaks at 1260 and 2 851cm-1 are assigned to C-C stretching and CH rocking of PVA.”
Sathish 等 - 2013 - Nano Composite PVA-TiO2 Thin Films for OTFTs DOI: 10.4028/www.scientific.net/AMR.678.335 -
Aromatic ring 信心 1.0
“The additional bands at 970.19 850.61 cm-1 cm-1 721.38 and 626.87 are due to aromatic C-H bending mode [22].”
Al-Qahtani 等 - 2022 - Structural, morphological, optical and electrochem DOI: 10.15251/JOR.2022.182.187 -
信心 1.0
“2 hydroxide.28,29 The three peaks of NiO/ZrO at 851.48, 854.68 2 which indicates that the addition of Zn species to the NiO/ZrO 2 Ni0/NiO, and 860.58 eV can be attributed to Ni(OH) and shakeZnO-ZrO NiO2 catalyst forms a solid solution and w”
Study on the performance of NiO/ZnxZr1−x catalysts for CO2 hydrogenation DOI: 10.1039/d0ra07660k -
Alkyl C-H 信心 1.0
“Practical application of BBSQ C-H and the vibration peak at 851 of the alkenyl group signicantly near the central squarate ring also changed The detection parameters of BBSQ and some reported probes”
NIR squaraine dyes for dual colorimetric and fluorescent determination of Fe3+, Cu2+, and Hg2+ ions DOI: 10.1039/d3ra02419a -
Carbonate 信心 1.0
“LLM confirmed rule peak-group candidate”
Fourier transform infrared spectroscopic studies of methane and liquefied natural gas reforming processes on Ni/CeO2 catalyst DOI: 10.1007/s11144-023-02362-7 -
Hydroxyl (O-H) 信心 1.0
“A peak in the absorption band at 851.4 has been ascribed to the O-H-O cm-1 bending vibration mode, while a smaller peak at 487 seems to represent the stretching cm-1.”
Venkatachalapathy 等 - 2022 - Synthesis, morphological, structural, functional, DOI: 10.15251/DJNB.2022.174.1441 -
Acetate 信心 1.0
“of PVA/SA evidenced for C-O-C at 1090 In the case of PMA incorporated PEMs cm-1 (Figure 1B,D) the peaks at 851 and 843, 966, 783 and 1060 are attributed to M=O d, MO b-M, M-O c-M and O=P=O, respectively [41,43].”
Fabrication of Eco-Friendly Polyelectrolyte Membranes Based on Sulfonate Grafted Sodium Alginate for Drug Delivery, Toxic Metal Ion Removal and Fuel Cell Applications DOI: 10.3390/polym13193293
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