What absorbs at 1037 cm⁻¹ in an FTIR spectrum?
A band near 1037 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 1037 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 |
|---|---|---|---|
| Methacrylate | 12 | 11 | 1.0 |
| Acetate | 12 | 11 | 1.0 |
| Methoxy (OCH3) | 11 | 10 | 1.0 |
| Silicon-oxygen (Si-O) | 10 | 10 | 1.0 |
| C-O single bond | 10 | 9 | 1.0 |
| Silicon (Si) | 8 | 8 | 1.0 |
| Alkyl C-H | 6 | 5 | 1.0 |
| Hydroxyl (O-H) | 4 | 4 | 1.0 |
| Amide | 3 | 3 | 1.0 |
| C c single bond | 3 | 3 | 1.0 |
| Carbohydrate | 3 | 2 | 1.0 |
| Phosphate (PO4) | 3 | 2 | 1.0 |
| Secondary amine | 2 | 2 | 1.0 |
| C n single bond | 2 | 2 | 1.0 |
| Protein | 2 | 2 | 1.0 |
| Aromatic ring | 2 | 2 | 1.0 |
| Siloxane (Si-O-Si) | 2 | 2 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Methyl | 1 | 1 | 1.0 |
| Silicate | 1 | 1 | 1.0 |
| Phosphorus | 1 | 1 | 1.0 |
| Metal hydroxyl | 1 | 1 | 1.0 |
| Sulfonyl | 1 | 1 | 0.9 |
| Carbonate | 1 | 1 | 0.9 |
| Fatty acid | 1 | 0 | 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 |
|---|---|---|---|
| graphene oxide | 1037, 1150, 3400 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| kaolinite | 1037, 3696, 693 | Silicon-oxygen (Si-O) | 1 |
| LDPE | 1037, 1720, 1737 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| glycerol | 1037, 1585, 1630 | Methacrylate, Acetate, Methoxy (OCH3) | 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 1037 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
-
Acetate confidence 1.0
“From FTIR cm(cid:0) 1 C-O-C analysis, observed peaks around 1037 represented the stretching vibrations of the saccharide found in pectin and glycerol.”
Optimization of citron peel pectin and glycerol concentration in the production of edible film using response surface methodology DOI: 10.1016/j.heliyon.2023.e13724 -
Silicon-oxygen (Si-O) confidence 1.0
“The peak cm-1 at 1037 was due to O-Si-O vibrations [43].”
Mimosa pudica mediated praseodymium substituted calcium silicate nanostructures for white LED application DOI: 10.1016/j.jallcom.2016.08.064 -
Silicon (Si) confidence 1.0
“cm-1 can be (v) The distinct high intense peak at 1037 The crystallization behavior of Hench's bioglass has correlated with Si-O-Si antisymmetric stretching of been characterized by several authors [31-33].”
El-Batal 等 - 2018 - Studies of Bone-Bonding Ability and Antibacterial DOI: 10.1007/s12633-017-9580-7 -
Acetate confidence 1.0
“Finally, the band at 833 is 1037 cm-1 have been assigned to C-O stretching vibration in the epoxy chain [52,64,65].”
Pereira 等 - 2020 - Ballistic Performance of Ramie Fabric Reinforcing DOI: 10.3390/polym12112711 -
Silicon (Si) confidence 1.0
“metakaolin correlated by the appearance of peaks near of 3650 cm-1 On the IR spectrum of metakaolin, a peak appeared at 1037 corresponds to a large concentration of cm-1 cm-1 Si-O bonds.”
Souissi 等 - 2022 - Synthesis, Thermal Properties and Electrical Condu DOI: 10.21203/rs.3.rs-1294285/v1 -
Acetate confidence 1.0
“Asymmetric COC stretching of lignin O-H 3451.52 3446.48 H2 bonded group of cellulose - 1269.41 C-O stretching of acetyl group in lignin and hemicelluloses C-H2 1068.81 - C-O stretching variations of polysaccharides 2923.85 2923.93 stretchin”
Biodegradable Green Composites: Effects of Potassium Permanganate (KMnO4) Treatment on Thermal, Mechanical, and Morphological Behavior of Butea Parviflora (BP) Fibers DOI: 10.3390/polym15092197 -
Silicon (Si) confidence 1.0
“cm-1 The band at 1037 could be attributed to the stretching vibrations of Si-O groups in cm-1 Al-OH.”
Enhancing the Thermal Stability of Ionogels: Synthesis and Properties of Triple Ionic Liquid/Halloysite/MCC Ionogels DOI: 10.3390/molecules26206198 -
confidence 1.0
“emerged at 1037 The formation of this peak is related to the calcium phosphate cm-1 formation.”
Bioactivity, cytocompatibility and thermal properties of experimental Bioglass-reinforced composites as potential root-canal filling materials DOI: 10.1016/j.jmbbm.2017.01.022
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