What absorbs at 1067 cm⁻¹ in an FTIR spectrum?
A band near 1067 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 1067 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.
可能性のある官能基アサイン
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| Methacrylate | 14 | 13 | 1.0 |
| Acetate | 14 | 13 | 1.0 |
| Methoxy (OCH3) | 13 | 12 | 1.0 |
| C-O single bond | 13 | 12 | 1.0 |
| Alkyl C-H | 5 | 5 | 1.0 |
| Silicon-oxygen (Si-O) | 5 | 5 | 1.0 |
| Amide | 5 | 5 | 1.0 |
| Silicon (Si) | 3 | 3 | 1.0 |
| Secondary amine | 3 | 3 | 1.0 |
| N h | 3 | 3 | 1.0 |
| Phosphate (PO4) | 3 | 2 | 1.0 |
| C n single bond | 2 | 2 | 1.0 |
| Ketone | 2 | 2 | 1.0 |
| Ester | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Metal oxygen | 2 | 1 | 1.0 |
| Phosphorus | 2 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| Urethane | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Bromine | 1 | 1 | 1.0 |
| Carbon bromine | 1 | 1 | 1.0 |
| Amine primary | 1 | 1 | 1.0 |
| Silanol (Si-OH) | 1 | 1 | 1.0 |
| Fluorine (C-F) | 1 | 1 | 0.9 |
ランキングは蓄積された文献証拠を反映しており、単一の権威あるルールではありません。常にサンプルのコンテキストと照合して確認してください。
Possible materials
| 素材 | 補助ピーク | Overlapping groups | 引用元 |
|---|---|---|---|
| graphene oxide | 1067, 1150, 3400 | Methacrylate, Acetate, C-O single bond | 1 |
| graphene | 1067, 1720, 2097 | 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 1067 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.
これらのアサインの根拠となる文献
-
Alkyl C-H 信頼度 1.0
“The band at 1067 shows symmetric stretching of cm-1 cm-1 CH-O-CH [35].”
Structural analysis and antioxidative properties of mutan (water-insoluble glucan) and carboxymethyl mutan from Streptococcus mutans DOI: 10.1016/j.procbio.2020.07.006 -
Amide 信頼度 1.0
“The peak at 1082 for functionalized The peak at 1590 cm-1 of functionalized GO is probably due to the N-H bend, while the same cm-1 GO is probably due to the shift of the C-N stretch at 1067 in the parent amine, ODA.”
Daud 等 - 2017 - Functionalizing Graphene Oxide with Alkylamine by DOI: 10.3390/nano7060135 -
Silanol (Si-OH) 信頼度 1.0
“The absorption band at 1067 is cm-1 Si-OH due to stretching modes of Si-O bond and the band at 998 is related to stretching.”
Dhanu 等 - 2020 - Photoluminescence of mixed phase CaSiO3Ce3+ nanop DOI: 10.1016/j.ijleo.2020.165139 -
信頼度 1.0
“functional group of symmetrical stretching of The Finally, the progression of the reaction was examined by the amine groups are assigned due to the N-H bending of 1066.64cm-1 alteration of the absorption intensity of the dye color using a p”
Rajeshkumar 等 - 2022 - Degradation of Toxic Dye and Antimicrobial and Fre DOI: 10.1155/2022/4513208 -
Carbon bromine 信頼度 1.0
“cm21 C-Br vibration at 1067 confirms that OPS have been”
Wang 等 - 2012 - Controlled network structure and its correlations DOI: 10.1039/c2ra00021k -
Acetate 信頼度 1.0
“C-C asymmetry deformation (aromatic ring) 1307 1304 C-O (sp2) stretching 1067 1249”
Yusoff 等 - 2018 - Theoretical and Experimental Approach Towards P-Cy DOI: 10.1088/1757-899X/374/1/012086 -
C c single bond 信頼度 1.0
“sand 21.7%), SSA (26.8 for the symmetric stretching 1234 organic matter content for the stretching of (14.7gkg-1)andcationexchangecapacity(10.0cmolkg-1),wereob2of\\COOH/ PO in phosphodiesters and phosphates, or vibrations C\\O\\Cinesters;10”
Contrasting effects of extracellular polymeric substances on the surface characteristics of bacterial pathogens and cell attachment to soil particles DOI: 10.1016/j.chemgeo.2015.06.013 -
Acetate 信頼度 1.0
“1067cm-1 stretching at corresponds to C-O (epoxy group).”
Abdelhalim 等 - 2016 - Graphene Functionalization by 1,6-Diaminohexane an DOI: 10.1155/2016/1485280
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