What absorbs at 3009 cm⁻¹ in an FTIR spectrum?
A band near 3009 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
Atribuiri posibile ale grupelor funcționale
| Grup funcțional | Fapte suport | Surse citate | Încredere maximă |
|---|---|---|---|
| Alkene (C=C) | 5 | 4 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Fatty acid | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 0 | 1,0 |
Clasamentul reflectă dovezile acumulate din literatură, nu o singură regulă autoritară. Confirmați întotdeauna în contextul mostrei dvs.
Literatura din spatele acestor atribuiri
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Hydroxyl (O-H) încredere 1,0
“the time and added enzyme effects were evaluated, cm-1) which resulted in the conversion of 50 and 45% of the unsaturation peak (3009 for the 24 h reactions with and without acrylic immobilization, respectively, in addition to cm-1), altera”
Montenegro 等 - 2023 - Enzymatic and Synthetic Routes of Castor Oil Epoxi DOI: 10.3390/polym15112477 -
Fatty acid încredere 1,0
“Another band appears at 3009 corresponding to the (H-C=) stretching vibration, which can be related to unsaturation in fatty acids, which is obviously greatest in the Brazilian coffee (B).”
Obeidat 等 - 2018 - Application of FTIR Spectroscopy for Assessment of DOI: 10.1007/s10812-018-0585-9 -
Aromatic ring încredere 1,0
“and 3009 aromatic C-H stretch was found at 3012 in NF-NDs/PAP/PANi/PTh and F-NDs/PAP/ An FTIR specPANi/PTh, respectively.”
Ashraf 等 - 2014 - Preparation and properties of multilayered polymer DOI: 10.1515/polyeng-2013-0297 -
Alkene (C=C) încredere 1,0
“a small peak was seen in all of the samples at 3009 This peak is caused by the symmetric stretching vibration of alkene double bonds, which suggests that all of the”
The Influence of Emulsifiers on the Physiochemical Behavior of Soy Wax/Rice Bran Oil-Based Oleogels and Their Application in Nutraceutical Delivery DOI: 10.3390/gels9010047 -
Alkene (C=C) încredere 1,0
“By analyzing and sesses two cis-alkene characteristic peaks which appear at 1660 and 3009 cm-1, representcomparing the spectra, it was found that the spectrum of the pristine jatropha possesses ing stretching vibrations of C=C and C=C-H, re”
Degradable Slow-Release Fertilizer Composite Prepared by Ex Situ Mixing of Inverse Vulcanized Copolymer with Urea DOI: 10.3390/agronomy12010065 -
Alkene (C=C) încredere 1,0
“LLM confirmed rule peak-group candidate”
Direct Polypropylene and Polyethylene Liquefaction in CO2 and N2 Atmospheres Using MgO Light and CaO as Catalysts DOI: 10.3390/ma15030844
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