What absorbs at 2060 cm⁻¹ in an FTIR spectrum?
A band near 2060 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 2060 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 |
|---|---|---|---|
| Adsorbed carbon monoxide | 3 | 2 | 1.0 |
| C#c | 1 | 1 | 1.0 |
| Urea | 1 | 1 | 1.0 |
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。
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 2060 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
-
Urea 信頼度 1.0
“3458cm21 17 Local base lines for the urea peak at and the thiocyanate peak 2060cm21 2551cm21 07:56 at were drawn by hand using the points at 3711 and for 1930cm21 the urea peak and 2319 and for the thiocyanate peak, respectively.”
Furlan 等 - 2004 - FTIR analysis of mouse urine urea using IR cards DOI: 10.1081/SL-120038766 -
信頼度 1.0
“Kadinov et found a new band at cm-1 cm-1 2030 using IR spectroscopy to study the CO adsorption (B) The peak at 2060 was also characteristic of the and coadsorption with H on 5% Ru/Al 2O and assigned it to a surface,33,34 Co(0001) which has”
Song 等 - 2007 - In situ diffuse reflectance FTIR study of CO adsor DOI: 10.1021/jp0751357 -
Adsorbed carbon monoxide 信頼度 1.0
“LLM confirmed rule peak-group candidate”
Surface Spectroscopy on UHV-Grown and Technological Ni–ZrO2 Reforming Catalysts: From UHV to Operando Conditions DOI: 10.1007/s11244-016-0678-8 -
Adsorbed carbon monoxide 信頼度 1.0
“cm-1 2070 will be unambiguously attributed to Another band, around 2060 may be attributed to CO adsorbed on Pt alloyed with Rh, according to Lévy et al.[5].”
Controlled preparation and characterization of Pt-Rh/Al2O3 bimetallic catalysts for reactions in reducing conditions DOI: 10.1016/j.apcata.2016.02.024 -
C#c 信頼度 1.0
“At peak with wave numbers 2140.99 cm-1 and 2059.98 , corresponds to the absorption caused by the triple bonds of C≡C (alkaline type cm-1”
Maulida 等 - 2018 - Utilization of mango seed starch in manufacture of DOI: 10.1088/1748-0221/5/10/P10010/pdf -
信頼度 0.95
“Explicit assignment: 'band at 2060 H-Si-O'”
Haiss 等 - 2006 - Surface termination and hydrogen bubble surfaces d DOI: 10.1016/j.jelechem.2006.07.027 -
信頼度 0.8
“Same as above.”
Upgrading the PtCu intermetallic compounds: The role of Pt and Cu in the alloy DOI: 10.1016/j.cattod.2019.11.026 -
信頼度 0.8
“High-frequency stretching mode of carbon-nitrogen complex”
Kuenneth 等 - 2018 - Symmetry and structure of carbon-nitrogen complexe DOI: 10.1088/1367-2630/14/5/053020
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