What absorbs at 2973 cm⁻¹ in an FTIR spectrum?
A band near 2973 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
Gán nhóm chức có thể
| Nhóm chức | Sự kiện hỗ trợ | Nguồn tham khảo | Độ tin cậy cao nhất |
|---|---|---|---|
| Alkyl C-H | 9 | 9 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
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Tài liệu tham khảo đằng sau các gán này
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Alkyl C-H độ tin cậy 1,0
“The characteristic band of the isosorbide monomer -OH groups is cm-1, cm-1 is observed at 3366 whereas the band at 2973 corresponds to the isosorbide methylene observed at 3366 cm-1, whereas the band at 2973 cm-1 corresponds to the isosorbi”
Gregori Valdes 等 - 2018 - Synthesis and Characterization of Isosorbide-Based DOI: 10.3390/polym10101170 -
Alkyl C-H độ tin cậy 1,0
“Ethanol also shows two C-H stretching 2 cm-1 bands at 2973.24 and 2928.46 due to CH and CH group (Table 4).”
Hema 等 - 2022 - Structural and vibrational study of molecular inte DOI: 10.21203/rs.3.rs-649250/v1 -
Alkyl C-H độ tin cậy 1,0
“The absorption band situated at 2973 correspondsto aliphatic methylene”
Synthesis Characterization and Highly Protective Efficiency of Tetraglycidyloxy Pentanal Epoxy Prepolymer as a Potential Corrosion Inhibitor for Mild Steel in 1 M HCl Medium DOI: 10.3390/polym14153100 -
Aromatic ring độ tin cậy 1,0
“IR spectrum, max, 3448 & 3277 ¼ C-H pyrazoline), 4.02 (1H, dd, J 12.4 Hz and 6.0 Hz, Hb protons of (amine stretching), 3048 (aromatic stretching), 2973, 2929 pyrazoline),4.40(2H,q,J¼7.2Hz,-CH (aliphaticC-Hstretching),1730(C]Ostretchingofd-l”
Coumarin–carbazole based functionalized pyrazolines: synthesis, characterization, anticancer investigation and molecular docking DOI: 10.1039/d1ra03970a -
Alkyl C-H độ tin cậy 1,0
“Heat maps plotting clusters of contents of phenol compounds, TPC and TFC analysed by The bands at 2973 cm-1, 2927 cm-1, and 2880 cm-1 are characteristics of C-H stretching”
Characterisation of the Phenolic Profile of Acacia retinodes and Acacia mearnsii Flowers’ Extracts DOI: 10.3390/plants11111442 -
Alkyl C-H độ tin cậy 1,0
“cm-1 In the APTES spectrum (Figure 1), the absorption bands observed at 2973 and cm-1 from 2925 are attributed to the asymmetric vibrations of the CH and CH groups,”
Synthesis and Characterization of Some Graphene Oxide Powders Used as Additives in Hydraulic Mortars DOI: 10.3390/app112311330 -
Alkyl C-H độ tin cậy 1,0
“IR spectrum of luteolin in THF shows two peaks at 2973 and 2857 cm-1, which correspond to the C-H stretching vibrations.”
Solubility of Luteolin and Other Polyphenolic Compounds in Water, Nonpolar, Polar Aprotic and Protic Solvents by Applying FTIR/HPLC DOI: 10.3390/pr9111952 -
Alkyl C-H độ tin cậy 1,0
“Particle Size band at 2973 cm-1 is due to the C-H stretch from the presence of alkyl groups [26].”
Electrochemical Study and Characterization of an [1.0]Amperometric Biosensor Based on the Immobilization of Laccase in a Nanostructure of TiO2 Synthesized by the Sol-Gel Method DOI: 10.3390/ma9070543
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