What absorbs at 2001 cm⁻¹ in an FTIR spectrum?
Ивица близо до 2001 cm⁻¹ може да сочи към няколко функционални групи. По-долу са най-вероятните присвоявания, подредени по количеството публикувани доказателства, които ги подкрепят — всяко едно проследимо до литература (DOI) и кръстосано валидирано спрямо нашите 130 000+ референтни спектъра и графика на знанията.
Backed by 8 cited sources
Възможни определяния на функционални групи
| Функционална група | Подкрепящи факти | Цитирани източници | Най-висока достоверност |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1,0 |
| Methoxy (OCH3) | 3 | 3 | 1,0 |
| Methacrylate | 3 | 3 | 1,0 |
| C-O single bond | 3 | 3 | 1,0 |
| Acetate | 3 | 3 | 1,0 |
| C c single bond | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| C#c | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
Класирането отразява натрупаните литературни доказателства, а не единично авторитетно правило. Винаги потвърждавайте спрямо контекста на вашата проба.
Литература зад тези определяния
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Alkyl C-H достоверност 1,0
“(2011) irradiated CH usually assigned to C-O stretching in alcohols (Socrates, 2001).”
Barakoti 等 - 2021 - Formaldehyde Analysis in Non-Aqueous Methanol Solu DOI: 10.3389/fchem.2021.678112 -
Hydroxyl (O-H) достоверност 1,0
“Nuclear Instruments and Methods in Physics Research shows the direction of increase in absorbance of OH stretching 2001;B181:367-71.”
Determination of eugenol diffusion through LLDPE using FTIR-ATR flow cell and HPLC techniques DOI: 10.1016/j.polymer.2009.01.026 -
Acetate достоверност 1,0
“The peak at 1030 sponds to C O and C C stretching vibrations (Ray & Sarkar, 2001).”
Kasyapi 等 - 2013 - Bionanowhiskers from jute Preparation and charact DOI: 10.1016/j.carbpol.2012.10.021 -
Alkyl C-H достоверност 1,0
“CH stretching aldehyde - cm-1 2001 N=C=C carbodiamide N=C=C carbodiamide cm-1 1728 Weak CH bending aromatic compound Weak CH bending aromatic compound”
Leemarose 等 - 2021 - Sustainable Synthesis of Gold Nanoparticles and it DOI: 10.13005/ojc/370216 -
Ester достоверност 1,0
“ν(C=O) corresponds to the vibration of the residue E286 tochangesintheglycerolbackboneofthesurroundinglipids.The ν(C=O) undergoing a change in hydrogen bonding (Nyquist et al., light-induced change in absorption of the ester vibration 2001;”
Baserga 等 - 2022 - Membrane Protein Activity Induces Specific Molecul DOI: 10.3389/fmolb.2022.915328 -
Acetate достоверност 1,0
“phospholipids (PO symmetric stretch)/C-O stretch, and finally the output variables, i.e., microbial populations, were reduced 2 cm-1 cm-1) at 1,044 corresponding to lipids and polysaccharides from 900 (wavelength 1,800-900 to less than 110”
Rapid Microbial Quality Assessment of Chicken Liver Inoculated or Not With Salmonella Using FTIR Spectroscopy and Machine Learning DOI: 10.3389/fmicb.2020.623788 -
Hydroxyl (O-H) достоверност 1,0
“The band at 3258 is due to the stretching vibrations of the O-H groups while bands cm-1, cm-1, cm-1 at 2001 2291 and 2318 are characteristic of the C-C triple bond of alkynes.”
Fawzy - 2021 - Flotation separation of dravite from phlogopite us DOI: 10.37190/ppmp/138587 -
Alkyl C-H достоверност 1,0
“Journal Pre-proof could also be associated with an overtone of the CH deformation vibration (Socrates, 2001).”
Huang 等 - 2021 - Prediction of biochemical methane potential of urb DOI: 10.1016/j.scitotenv.2021.147959
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