What absorbs at 3017 cm⁻¹ in an FTIR spectrum?
A band near 3017 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
Quick answer
A band near 3017 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 1,0 |
| Hydrogen bond | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Amine primary | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Possible materials
| Materiāls | Atbalstošie pīķi | Overlapping groups | Citētie avoti |
|---|---|---|---|
| methane | 3017, 1740, 1400 | Alkyl C-H | 1 |
| PVC | 3017, 834, 1195 | Alkyl C-H | 1 |
| epoxy | 3017, 1660, 1735 | Alkyl C-H | 1 |
Materials are shown only when the same literature pool supports this band and at least one additional characteristic peak.
Spectrum logic
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 3017 cm⁻¹ is usually not enough for material identification by itself.
Real-world usage
This type of query is common in polymer identification, unknown plastic screening, QC troubleshooting, recycled-material verification, and literature-backed peak assignment review.
Common mistakes
- Treating one isolated band as proof of a material without checking at least one or two supporting peaks.
- Ignoring overlap: multiple functional groups can contribute near the same wavenumber.
- Skipping validation when additives, blends, oxidation, or contamination may distort the spectrum.
Verification advice
When ambiguity remains, validate the hypothesis with DSC, GC-MS, or TGA, especially for blends, degraded samples, and filled polymers.
Literatūra aiz šiem piešķīrumiem
-
Aromatic ring pārliecība 1,0
“For OI3-oligomer, a broad band at 3253 C-O cm-1 ─NH is primary stretch of amines, a small band near 3017 cm-1 ─C─H appeared due to aromatic stretch.”
Influence of amine‐terminated additives on thermal and mechanical properties of diglycidyl ether of bisphenol A (DGEBA) cured epoxy DOI: 10.1002/app.48404 -
Alkyl C-H pārliecība 1,0
“LLM confirmed rule peak-group candidate”
Structural Dependence and Spectroscopic Evidence of Methane Dissolution in Ionic Liquids DOI: 10.1021/acs.jpcb.8b03178 -
Alkene (C=C) pārliecība 1,0
“As shown in Figure 4, the bands at about 3017 cm-1 cm-1 in Figure 4, the bands at about 3017 assigned to C=CH appeared and the intensity of C=C and the intensity of C=C (corresponding to 1600 cm-1) was increased, indicating the elimination”
Understanding Hydrothermal Dechlorination of PVC by Focusing on the Operating Conditions and Hydrochar Characteristics DOI: 10.3390/app7030256 -
Alkyl C-H pārliecība 1,0
“It is possible to note the appearcm-1 the 3570-3000 region, ascribed to the O-H stretching move of water being produced ance of a band in the 3570-3000 cm-1 region, ascribed to the O-H stretching move of water cm-1 in the reaction, which al”
Thermal and Plasma-Assisted CO2 Methanation over Ru/Zeolite: A Mechanistic Study Using In-Situ Operando FTIR DOI: 10.3390/catal13030481 -
Amide pārliecība 1,0
“cm-1 C=O and 1439 and the bond in the carboxylic acid group is 1683 The peak at 1388 infrared spectrum of EDTA (curve a in Figure 2A), the stretching vibration peaks of -CH2are 3017 cm-1 cm-1 is the C-N bond, 1310 is the bending vibration o”
Inhibition of Poly(ethylenediaminetetraacetic acid-diethanolamine) on Deposition of Calcium Sulfate Crystal in Simulated Industrial Water DOI: 10.3390/cryst10060544 -
Amine primary pārliecība 1,0
“The other two bands of the primary amine stretch cm-1 are forming a broad band and indicate that there is hydrogen bonding at 3142 and 3017 cm-1 within the self-assembled monolayer.”
Growth and organization of (3-Trimethoxysilylpropyl) diethylenetriamine within reactive amino-terminated self-assembled monolayer on silica DOI: 10.1016/S0079-6816(00)00024-1. -
Alkyl C-H pārliecība 1,0
“5.ThespectrumofpureLOVshowsintense cm-1 absorption bands at 3538 (alcohol O-H stretching), was wider and appeared at different positions according to cm-1 cm-1 3017 (olefinic C-H stretching), 2965 (methyl the mass ratios as shown in Fig.”
Gorniak 等 - 2016 - Thermal, spectroscopic and dissolution studies of DOI: 10.1007/s10973-016-5279-z -
Alkyl C-H pārliecība 1,0
“Explicit assignment in text.”
Cross-linked #_#x03B2;-cyclodextrin and carboxymethyl cellulose hydrogels for controlled drug delivery of acyclovir DOI: 10.1371/journal.pone.0172727
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