What absorbs at 2930 cm⁻¹ in an FTIR spectrum?
A band near 2930 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
가능한 작용기 할당
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| Alkyl C-H | 43 | 42 | 1.0 |
| Methyl | 4 | 4 | 1.0 |
| Lipid | 2 | 2 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| Carbohydrate | 1 | 1 | 0.9 |
| N h | 1 | 1 | 0.8 |
| Aromatic ring | 1 | 1 | 0.8 |
| C-O single bond | 1 | 1 | 0.7 |
순위는 단일 권위 규칙이 아닌 축적된 문헌 증거를 반영합니다. 항상 샘플 상황에 대해 확인하세요.
이 할당의 배경이 되는 문헌
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Methyl 신뢰도 1.0
“CH3 at 2930”
El-Shekeil 等 - 2012 - Effect of pMDI isocyanate additive on mechanical a DOI: 10.1177/0021998310385030) -
Alkyl C-H 신뢰도 1.0
“Explicit assignment in text”
Ghamry 和 Abdelmonem - 2022 - Adsorption of Co-60 and Eu154+152 Using Graft Copo DOI: 10.1007/s10924-022-02446-w -
Alkyl C-H 신뢰도 1.0
“Asymmetric CH2 stretching mode.”
Wang 等 - 2018 - Synthesis and Characterization of a Dual-Cation Or DOI: 10.3390/ma11112320 -
Alkyl C-H 신뢰도 0.95
“Explicit assignment: 'at cm-1, which is related to the C-H stretching, 2930'”
Fernandes 等 - 2019 - The development and characterization of Propranolo DOI: 10.1590/0001-3765201920180094 -
Alkyl C-H 신뢰도 0.95
“explicit assignment”
Gorniak 等 - 2022 - Preformulation Studies of Ezetimibe-Simvastatin So DOI: 10.3390/pharmaceutics14050912 -
Alkyl C-H 신뢰도 0.95
“explicit assignment for SIM”
Gorniak 等 - 2023 - Screening of Fenofibrate-Simvastatin Solid Dispers DOI: 10.3390/pharmaceutics15020603 -
Alkyl C-H 신뢰도 0.95
“Explicit assignment: 'band at 2930 cm-1 was due to the strong stretching modes of -CH2- and -CH-'”
Ma 等 - 2022 - Thermal and Rheological Performances Evaluation of DOI: 10.3390/molecules27227776 -
Methyl 신뢰도 0.95
“Explicit assignment: 'absorption band at 2930 is assigned to the stretching vibration of the CH3'”
Yuan 等 - 2016 - Synthesis of a New Titanate Coupling Agent for the DOI: 10.3390/ma9080625
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