What absorbs at 2060 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 2060 cm⁻¹ puede apuntar a varios grupos funcionales. A continuación se muestran las asignaciones más probables, clasificadas por cuánta evidencia publicada respalda cada una — cada una trazable a literatura (DOI) y validada de forma cruzada con nuestros más de 130,000 espectros de referencia y grafo de conocimiento.
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.
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Adsorbed carbon monoxide | 3 | 2 | 1,0 |
| C#c | 1 | 1 | 1,0 |
| Urea | 1 | 1 | 1,0 |
La clasificación refleja la evidencia acumulada de la literatura, no una única regla autorizada. Siempre confirme según el contexto de su muestra.
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.
Literatura detrás de estas asignaciones
-
Urea confianza 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 -
confianza 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 confianza 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 confianza 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 confianza 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 -
confianza 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 -
confianza 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 -
confianza 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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