What absorbs at 3003 cm⁻¹ in an FTIR spectrum?
A band near 3003 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 6 cited sources
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1,0 |
| Fatty acid | 1 | 1 | 1,0 |
| Methyl | 1 | 1 | 1,0 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Literatūra aiz šiem piešķīrumiem
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Alkyl C-H pārliecība 1,0
“The weak peak at 3003 cm-1 was associated with the stretching vibration of CH in the benzene cm-1 The weak peak at 3003 was associated with the stretching vibration of CH in the benzene”
Fabrication of Glass Fiber Reinforced Composites Based on Bio-Oil Phenol Formaldehyde Resin DOI: 10.3390/ma9110886 -
Alkyl C-H pārliecība 1,0
“Furthermore, cm-1 ν(C-H) the two peaks at about 2951 and 3003 correspond to the vibration modes of methyl groups.”
Nanaki 等 - 2020 - New Biodegradable Poly(l-lactide)-Block-Poly(propy DOI: 10.3390/polym12040852 -
Alkyl C-H pārliecība 1,0
“Usually, shifted bands between 3003 and 3020 that are due to C-H cis-olefins stretching in denote a high level of unsaturated fatty acids and adulteration with”
Toward the Non-Targeted Detection of Adulterated Virgin Olive Oil with Edible Oils via FTIR Spectroscopy & Chemometrics: Research Methodology Trends, Gaps and Future Perspectives DOI: 10.3390/molecules28010337 -
Alkyl C-H pārliecība 1,0
“It should be stressed that solvents under study can cm-1 cm-1 C-H vibrations are located at 3003 in the acetone spectrum and at 2984 in the disguise luteolin's peaks so, depending on the solvent, differences can only be seen in cm-1, ethyl”
Solubility of Luteolin and Other Polyphenolic Compounds in Water, Nonpolar, Polar Aprotic and Protic Solvents by Applying FTIR/HPLC DOI: 10.3390/pr9111952 -
pārliecība 0,8
“Band at approximately 3003 associated to volatile compounds.”
Effect of Frying and Roasting Processes on the Oxidative Stability of Sunflower Seeds (Helianthus annuus) under Normal and Accelerated Storage Conditions DOI: 10.3390/foods10050944 -
pārliecība 0,6
“Text: 'aromatic protons appeared around 3003'”
Ashraf 等 - 2014 - Preparation and properties of multilayered polymer DOI: 10.1515/polyeng-2013-0297
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