What absorbs at 1054 cm⁻¹ in an FTIR spectrum?
A band near 1054 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 1054 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 | 11 | 10 | 1.0 |
| Methoxy (OCH3) | 9 | 8 | 1.0 |
| Methacrylate | 9 | 8 | 1.0 |
| Acetate | 9 | 8 | 1.0 |
| Hydroxyl (O-H) | 5 | 5 | 1.0 |
| Silicon-oxygen (Si-O) | 4 | 4 | 1.0 |
| N h | 3 | 3 | 1.0 |
| Carbohydrate | 3 | 3 | 1.0 |
| Silicon (Si) | 2 | 2 | 1.0 |
| Amide | 2 | 2 | 1.0 |
| Alkyl C-H | 2 | 2 | 1.0 |
| Metal oxygen | 2 | 2 | 1.0 |
| Siloxane (Si-O-Si) | 2 | 2 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single 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 |
|---|---|---|---|
| CuO | 1054, 453, 1000 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| nanoparticles | 1054, 1732, 1647 | C-O single bond, Methacrylate, Acetate | 1 |
| silver nanoparticles | 1054, 1636, 1631 | Methacrylate, Acetate, 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 1054 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
-
confidence 1.0
“A prominent band ~ 1054 is attributed to the vibrations of Ti-O-C, suggested good immobilization/encapsulation of PR species within the ANPs matrix.”
Fast responsive anatase nanoparticles coated fiber optic pH sensor DOI: 10.1016/j.jallcom.2020.156246 -
Carbohydrate confidence 1.0
“In the fingerprint region, we noticed 85 cm-1 three well-defined peaks at 1054, 1085, and 1154 characteristic of pectic 86 polysaccharides.”
Lefsih 等 - 2016 - Extraction, characterization and gelling behavior DOI: 10.1016/j.ijbiomac.2015.10.046 -
Hydroxyl (O-H) confidence 1.0
“The band at 1039 cm-1 and 1054 cm-1 corresponds to the primary alcohol (hydroxyethyl 88 group) C-O stretching mode.”
Aktas 等 - 2020 - A Novel Ag-N-Heterocyclic Carbene Complex Bearing DOI: 10.3390/cryst10030171 -
Alkyl C-H confidence 1.0
“taining both carbon traces and KBr might be attributed to the bands observed at 1128cm-1 the presence of carbon traces observed at 2198 and 2924 due to C-H stretching 1054, 1629-1580, and 3493-3433 cm-1 [29,30].”
One Pot Synthesis, Surface and Magnetic Properties of Cu2O/Cu and Cu2O/CuO Nanocomposites DOI: 10.3390/cryst11070751 -
Amide confidence 1.0
“and the prominent peak at 1054 cm-1 is typical for the C-N (amines) stretching EuG-AgNPs, formation of biomolecules of phytochemicals bind with the silver through vibration of proteins [52].”
Eucalyptus globulus and Salvia officinalis Extracts Mediated Green Synthesis of Silver Nanoparticles and Their Application as an Antioxidant and Antimicrobial Agent DOI: 10.3390/plants11081085 -
confidence 1.0
“Between 350 and 410°C, a 1054cm-1 is attributed to the presence of amorphous silica which is slow decomposition is observed with a maximum of the decomposition present in kaolinite structure.”
Interactions between kaolinite and phosphinate-based flame retardant in Polyamide 6 DOI: 10.1016/j.clay.2018.02.021 -
Acetate confidence 1.0
“Highlighted cm-1 was identified via the vibration band at 1054 from the identified via areas correspond to relevant compounds the NIST14 MS on (C-O).”
Battig 等 - 2019 - Hyperbranched phosphorus flame retardants multifu DOI: 10.1039/c9py00737g -
Acetate confidence 1.0
“The peak at 1054 associated with tensile vibration of C-O-C bond and glycoside bridge (Mandal and Chakrabarty 2011) was observed only in the bleached”
Birgani 等 - 2021 - Production of Nanocrystalline Cellulose from Bleac DOI: 10.1080/19443994.2015.1041161
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