What absorbs at 2352 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 2352 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 5 cited sources
Quick answer
A band near 2352 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 |
|---|---|---|---|
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
| Carbon dioxide | 1 | 1 | 0,9 |
La clasificación refleja la evidencia acumulada de la literatura, no una única regla autorizada. Siempre confirme según el contexto de su muestra.
Possible materials
| Material | Supporting peaks | Overlapping groups | Fuentes citadas |
|---|---|---|---|
| ZnO NPs | 2352, 1664, 875 | Methacrylate, Acetate | 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 2352 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
-
confianza 1,0
“cm-1 band absorptions at 734 and 2352 The band absorption at 2352 indicates the absorption cm-1 of Ti-O, while the absorption at 734 is attributed to absorption of Ti-O-Ti.”
Nizar 等 - 2018 - The Effect of Titanium Tetrahedral Coordination of DOI: 10.1088/1757-899X/335/1/012036 -
Protein confianza 1,0
“cm-1 stretch of the methylene groups of the protein Bands at 2352 and 2109 are associated with the compounds44.”
Statistical optimization of experimental parameters for extracellular synthesis of zinc oxide nanoparticles by a novel haloalaliphilic Alkalibacillus sp.W7 DOI: 10.1038/s41598-021-90408-y -
Acetate confianza 1,0
“The absorption bands at 2352 represent the vibrations of the C-O bond, attributed to the presence of carbonates, that represent the vibrations of the C-O bond, attributed to the presence of carbonates, cm-1 homogeneously dissolved at the mo”
Hsieh 等 - 2021 - Using Geopolymer Technology on Synthesizing Leucit DOI: 10.3390/polym13213621 -
Carbon dioxide confianza 0,9
“Stretching vibration of O=C=O resulted in IR band at 2352 cm-1.”
Fabrication of Cu1.5Mn1.5O4 Nanoparticles Using One Step Self-Assembling Route to Enhance Energy Consumption DOI: 10.3390/app11052034 -
confianza 0,8
“Band at 2352 cm-1 assigned to adsorbed CO2.”
Rasko 和 Kiss - 2006 - CO oxidation in the presence of hydrogen on AuTiO DOI: 10.1007/s10562-006-0133-8
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