What absorbs at 922 cm⁻¹ in an FTIR spectrum?
A band near 922 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
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 3 | 1,0 |
| Alkyl C-H | 3 | 3 | 1,0 |
| Aromatic ring | 2 | 2 | 1,0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1,0 |
| Ring structure | 2 | 2 | 1,0 |
| Chlorine | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Silanol (Si-OH) | 1 | 1 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1,0 |
| Silicate | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Sulfate (SO4) | 1 | 1 | 1,0 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Literatūra aiz šiem piešķīrumiem
-
Silicon-oxygen (Si-O) pārliecība 1,0
“LLM confirmed rule peak-group candidate”
FTIR study on early age hydration of carbon nanotubes modified cement-based materials DOI: 10.1680/jadcr.16.00167 -
Aromatic ring pārliecība 1,0
“(O corresponds to oxygen from the corner of the heteropolyanion structure), W-O e-W c IR spectrum of PDPA doped with the PTA heteropolyanions is characterized by the IR (O corresponds to oxygen from the side of the heteropolyanion structure”
The Photoluminescence and Vibrational Properties of Black Phosphorous Sheets Chemically/Electrochemically Functionalized in the Presence of Diphenylamine DOI: 10.3390/polym14214479 -
Alkene (C=C) pārliecība 1,0
“vibration of C=C bonds in aromatic groups [24] and is characbelong to the strong aliphatic C-H stretching band 2,922 cm-1 cm-1 terized by the enhancement and disappearance after adsorption and 2,922 belong [23].”
Deng 等 - 2022 - Efficient adsorption capability of banana and cass DOI: 10.4491/eer.2020.575 -
Silicate pārliecība 1,0
“while cm-1 Therefore, the bands at 922 and 1020 corresponded to vibrations of the silicate dimer and cyclic oligomer, respectively.”
Polymerization of silicate on TiO2 and its influence on arsenate adsorption: An ATR-FTIR study DOI: 10.1016/j.colsurfa.2015.01.021 -
Acetate pārliecība 1,0
“FTIR (KBr, 1055 (C-O stretching), 1269 (asymmetric COC stretching), 1383 (CH wagging), 1680 (C=O stretching 2 of COOH), 1734 (C=O stretching of coumarin moiety), 922 and 1518 (vibrations of trisubstituted 1H”
Lin 等 - 2017 - Coumarinand Carboxyl-Functionalized Supramolecul DOI: 10.3390/polym9040146 -
Sulfate (SO4) pārliecība 1,0
“1b), spectrum of 100/0 cm(cid:4)1 wasadded;thesharppeakat28.4(cid:2) cordisappearedandonlythebroad from which it is important to highlight a peak at 1220 cm(cid:4)1 responding to the ester sulfate groups, a peak at 922 amorphous band was ob”
Martins 等 - 2012 - Synergistic effects between kappa-carrageenan and DOI: 10.1016/j.foodhyd.2012.03.004 -
Hydroxyl (O-H) pārliecība 1,0
“on PC2 is due to changes in the absorbance peak at 1030 As paraformaldehyde and water combine to methylene glycol (HO-CH 2-OH), characteristic peaks at 1023 and cm-1 922 due to bending vibrations of O-H and C-H are expected at the beginning”
Prediction of Residual Curing Capacity of Melamine-Formaldehyde Resins at an Early Stage of Synthesis by In-Line FTIR Spectroscopy DOI: 10.3390/polym13152541 -
Hydroxyl (O-H) pārliecība 1,0
“The absorption peaks at 1060 and 922 cm-1 represented the symmetric and and asymmetric stretching vibrations of -P-Obonds in the -P(=O)OH groups and those at around asymmetric stretching vibrations of -P-Obonds in the -P(=O)OH groups and th”
Hemimorphite Flotation with 1-Hydroxydodecylidene-1,1-diphosphonic Acid and Its Mechanism DOI: 10.3390/min8020038
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