What absorbs at 1467 cm⁻¹ in an FTIR spectrum?
A band near 1467 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 1467 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.
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Alkyl C-H | 14 | 12 | 1.0 |
| Methacrylate | 10 | 10 | 1.0 |
| Acetate | 10 | 10 | 1.0 |
| Methoxy (OCH3) | 8 | 8 | 1.0 |
| C-O single bond | 6 | 6 | 1.0 |
| Methyl | 5 | 5 | 1.0 |
| Amide | 4 | 4 | 1.0 |
| Carbonyl (C=O) | 3 | 3 | 1.0 |
| Aromatic ring | 2 | 2 | 1.0 |
| Ketone | 2 | 2 | 1.0 |
| Ester | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Alkene (C=C) | 2 | 2 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Lipid | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single fixed rule. Always confirm against your sample context.
Possible materials
| Material | Supporting peaks | Overlapping groups | Cited sources |
|---|---|---|---|
| PVA | 1467, 1660, 2930 | Alkyl C-H, Acetate, Methacrylate | 1 |
| DNA | 1467, 1712, 1660 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| PLGA | 1467, 3200, 1741 | Alkyl C-H, Methacrylate, Acetate | 1 |
| lipids | 1467, 1735, 810 | Alkyl C-H, Methacrylate, Acetate | 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 1467 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.
Literature behind these assignments
-
Silicon (Si) confidence 1.0
“Moscow cm(cid:1)1 and scissor vibrations at 1467 due to the C chain anchoring the oligonucleotide to the silicon 11 surface are also clearly visible.”
Lie 等 - 2004 - Immobilisation and synthesis of DNA on Si(111), na DOI: 10.1039/b302845c -
Alkyl C-H confidence 1.0
“The scissoring 2 2 cm(cid:2)1 cm(cid:2)1 CH band at 1467 stretching bands are located at 2921 and 2851 appears as a single absorption.”
Topacli 等 - 2006 - Infrared studies of pyroelectric Langmuir-Blodgett DOI: 10.1016/j.molstruc.2006.03.083 -
Alkyl C-H confidence 1.0
“PO2 stretch C = O stretch C-H bend 1172 C-O stretch 1060 COH stretch 1467 1090 C-H bend PO2 stretch 1092”
Prediction of Neonatal Respiratory Distress Biomarker Concentration by Application of Machine Learning to Mid-Infrared Spectra DOI: 10.3390/s22051744 -
Alkyl C-H confidence 1.0
“-1, C-H stretching At wavelengths 1341, 1365 and 1467cm -1 𝜃𝜃 was observed due to methyl group.”
Ankamwar 和 Thorat - 2013 - Rod-Shaped Magnetite NanoMicroparticles Synthesis DOI: 10.1155/2013/537976 -
Amide confidence 1.0
“A cm(cid:3)1 (cid:1)42-43%, gladius, with a total yield of in agreement with prewell-defined band at 1467 denotes the amide I band of cm(cid:3)1 cm(cid:3)1 vious reports [29].”
Mechanochemical synthesis of chitosan submicron particles from the gladius of Todarodes pacificus DOI: 10.1016/j.jare.2016.08.006 -
Alkyl C-H confidence 1.0
“under stressful conditions, often imposed by the ferabsence of lactic acid is characterized by a number of well mentation processes, the second derivatives of the FTIR resolved bands mainly due to the CH and CH deforma2 3 cm-1 absorption sp”
Protein aggregation and membrane lipid modifications under lactic acid stress in wild type and OPI1 deleted Saccharomyces cerevisiae strains DOI: 10.1186/s12934-016-0438-2 -
Alkyl C-H confidence 1.0
“Hence, it can be cm(cid:4)1) C-H FTIR peak (1467 reveals the presence of the bending concluded that there is no change in the PL property of CACD cm(cid:4)1 signies vibration.”
Insight into carbon quantum dot–vesicles interactions: role of functional groups DOI: 10.1039/d1ra08809b -
Acetate confidence 1.0
“cm(cid:1)1 cm(cid:1)1 -C-O The band present at 1467 The peak at 1095 is present because of stretching is due to the presence of”
Poly Lactic-Co-Glycolic Acid Nano-Carriers for Encapsulation and Controlled Release of Hydrophobic Drug to Enhance the Bioavailability and Antimicrobial Properties DOI: 10.1177/15593258231152117
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