What absorbs at 831 cm⁻¹ in an FTIR spectrum?
A band near 831 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 7 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 | 3 | 3 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Metal oxygen | 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
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Metal oxygen 信心 1.0
“The coincidence of the critical magnetic vibrations domain size with the particle size would impede the domain rotation [50] anti-symmetric stretching of M - O strong 831 at octahedral sites and consequently results in a decrease in the sat”
Low-temperature synthesis of Sr2FeMoO6 double perovskite; structure, morphology, and magnetic properties DOI: 10.1016/j.ceramint.2020.03.264 -
信心 1.0
“Sol-gel MgO nanoparticles synthesis performed Kumar et al (2008) 130 nm sized MgO nanoparticles by annealing at 300-700°C showed that FTIR transmission peaks at 831.2 and 499.5 cm-1 Also, Tamilselvi et al (2013) produced 30-50 nm sized MgO”
Jeevanandam 等 - 2017 - Biosynthesis and characterization of MgO nanoparti DOI: 10.1039/C6NJ03176E. -
Alkyl C-H 信心 1.0
“As observed from Figure 7a, the pristine PSF membrane shows C-H rocking at the characteristic band As observed from Figure 7a, the pristine PSF membrane shows C-H rocking at the characteristic band at 831 cm-1.”
Functionalized KIT-6/Polysulfone Mixed Matrix Membranes for Enhanced CO2/CH4 Gas Separation DOI: 10.3390/polym12102312 -
Carbohydrate 信心 1.0
“LLM confirmed rule peak-group candidate”
Li 等 - 2022 - Stability, Structure, Rheological Properties, and DOI: 10.3390/foods11193110 -
Alkyl C-H 信心 1.0
“The Surface morphology was studied by means of a FEI cm-1 absorption at 831 indicates out-of-plane Quanta 200 scanning electron microscope, using 5 keV =CH bending of cis-1,4-.”
Nair 等 - 2019 - SYNTHESIS, CHARACTERIZATION AND DYE REMOVAL PROPER DOI: 10.1080/07900629550042119 -
Alkyl C-H 信心 1.0
“cm-1 The peak at 831 can be ascribed to the C-H group [44].”
Synthesis and Characterization of Some Graphene Oxide Powders Used as Additives in Hydraulic Mortars DOI: 10.3390/app112311330 -
Oxygen heterocycle 信心 1.0
“cm-1 The appearance of a new band at 831 in the spectrum of epoxidized fatty ester (b) corresponds to epoxy groups [33], which is another indication of the conversion of unsaturated alkenes into epoxy groups.”
Microwave-Assisted Catalytic Synthesis of Bio-Based Copolymers from Waste Cooking Oil DOI: 10.3390/ma10030315
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