What absorbs at 1410 cm⁻¹ in an FTIR spectrum?
A band near 1410 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 1410 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 | 22 | 21 | 1.0 |
| Acetate | 16 | 15 | 1.0 |
| C-O single bond | 16 | 15 | 1.0 |
| Methacrylate | 15 | 14 | 1.0 |
| Methoxy (OCH3) | 14 | 13 | 1.0 |
| Carboxyl (COOH) | 14 | 12 | 1.0 |
| Hydroxyl (O-H) | 11 | 9 | 1.0 |
| Alkene (C=C) | 7 | 6 | 1.0 |
| Amide | 6 | 6 | 1.0 |
| Carbonate | 6 | 6 | 1.0 |
| Ring structure | 6 | 6 | 1.0 |
| Aromatic ring | 4 | 4 | 1.0 |
| Secondary amine | 3 | 3 | 1.0 |
| C n single bond | 3 | 3 | 1.0 |
| Carbonyl (C=O) | 3 | 3 | 1.0 |
| Siloxane (Si-O-Si) | 3 | 2 | 1.0 |
| Silicon (Si) | 3 | 2 | 1.0 |
| Methyl | 2 | 2 | 1.0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1.0 |
| N h | 2 | 2 | 1.0 |
| Silicon carbon | 2 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Borate | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Silanol (Si-OH) | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| C=n | 1 | 1 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| S eq o | 1 | 1 | 1.0 |
| Nitrogen heterocycle | 1 | 1 | 1.0 |
| C-S single bond | 1 | 1 | 1.0 |
| Carbon dioxide | 1 | 1 | 1.0 |
| Boron nitrogen | 1 | 1 | 1.0 |
| Hydrogen bond | 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 |
|---|---|---|---|
| Polyethylene | 1410, 1737, 1720 | Alkyl C-H, Methacrylate, Acetate | 1 |
| bone | 1410, 1649, 1660 | Alkyl C-H | 1 |
| ZnO | 1410, 1400, 3430 | Alkyl C-H, Acetate, Methacrylate | 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 1410 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
-
Hydroxyl (O-H) confidence 1.0
“Because of the O-H stretching and cm-1, absorption band at 1410 while the carbonyl group bending vibration of the hydroxyl groups in the interlayer”
Bohari 等 - 2022 - Synthesis and Characterization of 2,4-Dichlorophen DOI: 10.22146/ijc.73546 -
Alkyl C-H confidence 1.0
“Vibrational bands at 2935 cm-1 and 2880 cm-1 referred to a C-H stretching, 1478 cm-1 to the CH2 bending of an alkyl group, and 1410 cm-1 to a C-H deformation.”
Can 等 - 2023 - Choline Chloride-Based Deep Eutectic Solvent-Treat DOI: 10.3390/f14030569 -
Ring structure confidence 1.0
“The 1410 band is characteristic of the Parasubstituted benzen ring and is known to be sensitive neither to the cristalinity rate nor to the morphology of the PET;”
Polyethylene terephthalate degradation under reactor neutron irradiation DOI: 10.1016/j.radphyschem.2016.10.002 -
Hydrogen bond confidence 1.0
“An peak are present at 1410 and 1636 indicative of a dimer formation through hydrogen bonding cm-1, due to possible hydrogen consumption occurs at 2660”
Durand 等 - 2010 - Reaction of Formic Acid over Amorphous Manganese O DOI: 10.1021/jp104629j -
Carbonate confidence 1.0
“LLM confirmed rule peak-group candidate”
Kontopoulos 等 - 2018 - Preparation of bone powder for FTIR-ATR analysis DOI: 10.1016/j.vibspec.2018.09.004 -
Boron nitrogen confidence 1.0
“LLM confirmed rule peak-group candidate”
Kumar 等 - 2016 - Emergence of fluorescence in boron nitride nanofla DOI: 10.1039/C6RA05288F. -
Carbon dioxide confidence 1.0
“Fourier-transform infrared spectroscopy (FTIR) analysis while ~2350 stretching was observed at ~1410 and ~1600 indicates trapped CO2 molecule from acetate/air.”
Role of dysprosium doping concentration on structural deformation of zinc oxide nanoparticles DOI: 10.1016/j.physb.2021.413313 -
C-S single bond confidence 1.0
“The other peaks observed at 1410 and 1173 in the FTIR spectrum are associated with the C-S and C-O-C stretching vibrations of MSA.”
Thermal degradation and crystallization kinetics studies on synthesized calcium mercaptosuccinate end-capped poly(ε-caprolactone) nanocomposite DOI: 10.1007/s00289-018-2614-5
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