What absorbs at 1014 cm⁻¹ in an FTIR spectrum?
A band near 1014 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 1014 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 |
|---|---|---|---|
| C-O single bond | 10 | 10 | 1.0 |
| Methoxy (OCH3) | 9 | 9 | 1.0 |
| Methacrylate | 9 | 9 | 1.0 |
| Acetate | 9 | 9 | 1.0 |
| Silicon-oxygen (Si-O) | 4 | 4 | 1.0 |
| Hydroxyl (O-H) | 4 | 4 | 1.0 |
| C c single bond | 3 | 3 | 1.0 |
| Siloxane (Si-O-Si) | 2 | 2 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Phosphorus | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| Carbonate | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Lignin | 1 | 1 | 1.0 |
| Water (H2O) | 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 |
|---|---|---|---|
| NaOH | 1014, 3429, 897 | C-O single bond, Methoxy (OCH3), Methacrylate | 1 |
| glycerol | 1014, 1585, 1630 | Methacrylate, Acetate, C-O single bond | 1 |
| cellulose nanocrystals | 1014, 1110, 1640 | Acetate, Methacrylate, C-O single bond | 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 1014 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
-
Water (H2O) confidence 1.0
“When the speciation and toxicity results were evaluThe water bending vibration identified around 1014 and”
The effect of electrocoagulation (EC) on total arsenic, arsenite (As3+) and arsenate (As5+) species removal from model groundwater investigating toxicity and sludge characteristic DOI: 10.1007/s13201-022-01660-0 -
Acetate confidence 1.0
“The strong cm-1 are weak, but those assigned to the C-C and C-O stretching is attributed to the C-C absorption peak at 1200~900 cm-1, vibrations of carbohydrate are strong at 1014~ 1020 and C-O stretching vibrations of carbohydrate.”
JOONSUK - 2019 - ATR-FTIR Analysis of Adhesives Jointing Buddhist S DOI: 10.12654/JCS.2019.35.1.02 -
confidence 1.0
“6 1639 Scheme 2 3a-d, tives which are more flexible than the previously characteristic Si-O stretching frequencies at 1014, 1087, 2,7-dihydroxyfluorene-9-one,24 cm-1, produced poly[oxyrespectively, suggesting that Si-O reported 1037, and 10”
Jung 和 Park - 2013 - Synthesis and Properties of Poly[oxy(arylene)oxy(t DOI: 10.5012/bkcs.2013.34.6.1637 -
Acetate confidence 1.0
“cm-1 Telmisartan 3059 (aromatic C H stretching) Complex (aromatic C H stretching) 3058 cm-1 2957 (aliphatic C H stretching) cm-1 cm-1 1699 (COOH stretching) 1652 (H O H bending) cm-1 cm-1 1599 (C C aromatic band and stretching) 1014 (C O C”
Telmisartan complex augments solubility, dissolution and drug delivery in prostate cancer cells DOI: 10.1016/j.carbpol.2013.09.077 -
Lignin confidence 1.0
“Meanwhile, the peak at 1014 cm-1 is due to the lignin, and waxy substances had occurred [4,32].”
Extraction and Characterization of Cellulose Nanocrystals from Tea Leaf Waste Fibers DOI: 10.3390/polym9110588 -
Acetate confidence 1.0
“• COO- • The COOstretch, C-H rock, and C-O-C stretch in the unplasticized sample (SC0) may The stretch, C-H rock, and C-O-C stretch in the unplasticized sample (SC0) may cm-1, cm-1, cm-1, be found around 1665 cm-1, 1438 cm-1, and 1014 cm-1,”
Adam 等 - 2023 - Insight into the Effect of Glycerol on Dielectric DOI: 10.3390/molecules28083461 -
Acetate confidence 1.0
“OH bending motion is demonstrated by the band at 1322 cm-1 cm-1 Furthermore, the band at 1014 was attributed to the C-O stretching, whereas the band at 906”
Structural and UV-blocking properties of carboxymethyl cellulose sodium/CuO nanocomposite films DOI: 10.1038/s41598-023-28032-1 -
Carbonate confidence 1.0
“affording the gel a higher proportion of silicon and shifting the FTIR band to higher values (1014 The carbonate band on the spectra for the activated pastes were both shifted to slightly higher cm-1) or lower wave numbers (1400 to 1500 and”
D'Elia 等 - 2020 - Effect of Alkali Concentration on the Activation o DOI: 10.3390/app10072203
Have a spectrum with this band?
Upload your FTIR spectrum and get a full interpretation report — peak assignments with literature citations, library matches, and a literature-backed analysis — in seconds.