What absorbs at 530 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 530 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
Respuesta rápida
A band near 530 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 |
|---|---|---|---|
| Metal oxygen | 26 | 25 | 1,0 |
| Hydroxyl (O-H) | 9 | 9 | 1,0 |
| Methacrylate | 7 | 7 | 1,0 |
| Acetate | 7 | 7 | 1,0 |
| Methoxy (OCH3) | 5 | 5 | 1,0 |
| C-O single bond | 5 | 5 | 1,0 |
| Amide | 4 | 4 | 1,0 |
| Silicon-oxygen (Si-O) | 4 | 4 | 1,0 |
| Ketone | 3 | 3 | 1,0 |
| Ester | 3 | 3 | 1,0 |
| Carboxyl (COOH) | 3 | 3 | 1,0 |
| Carbonyl (C=O) | 3 | 3 | 1,0 |
| Phosphate (PO4) | 3 | 3 | 1,0 |
| Metal hydroxyl | 2 | 2 | 1,0 |
| Nitrogen heterocycle | 1 | 1 | 1,0 |
| Nitro (NO2) | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Borate | 1 | 1 | 1,0 |
| S s | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Fluorine (C-F) | 1 | 1 | 1,0 |
| N-O bond | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 0 | 1,0 |
La clasificación refleja la evidencia acumulada de la literatura, no una única regla autorizada. Siempre confirme según el contexto de su muestra.
Materiales posibles
| Material | Picos de apoyo | Grupos superpuestos | Fuentes citadas |
|---|---|---|---|
| TiO | 530, 1730, 1699 | Hydroxyl (O-H), Methacrylate, Acetate | 1 |
| silver nanoparticles | 530, 1636, 1631 | Hydroxyl (O-H), Methacrylate, Acetate | 1 |
Los materiales se muestran solo cuando el mismo grupo de literatura respalda esta banda y al menos un pico característico adicional.
Lógica de espectro
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 530 cm⁻¹ is usually not enough for material identification by itself.
Uso en el mundo real
Este tipo de consulta es común en la identificación de polímeros, cribado de plásticos desconocidos, resolución de problemas de control de calidad, verificación de materiales reciclados y revisión de asignación de picos respaldada por la literatura.
Errores comunes
- Tratar una banda aislada como prueba de un material sin verificar al menos uno o dos picos de apoyo.
- Ignorando superposición: múltiples grupos funcionales pueden contribuir cerca del mismo número de onda.
- Omitir la validación cuando los aditivos, las mezclas, la oxidación o la contaminación puedan distorsionar el espectro.
Consejo de verificación
Cuando persista la ambigüedad, valide la hipótesis con DSC, GC-MS o TGA, especialmente para mezclas, muestras degradadas y polímeros rellenos.
Literatura detrás de estas asignaciones
-
confianza 1,0
“environment of the capping agents on the The peak of 530.17 indicates the Ag-O”
Dev 等 - 2018 - GREEN SYNTHESIS OF SILVER NANOPARTICLES USING LEAF DOI: 10.13040/IJPSR.0975-8232.9(9).3897-02 -
N-O bond confianza 1,0
“fitting below 7% and in Ge The result is evident indicative of the fact that amorphous 1(cid:1)yC alloys by carbon implantation into y films.[8,22] crystal.[17] germanium clusters exist in the germanium However, in our work, no peak associa”
Han 等 - 2013 - Non-hydrogenated amorphous germanium carbide with DOI: 10.1002/sia.5130 -
confianza 1,0
“(RGR) of the cells, and RGRs were calculated using the The peak located at 529.5 eV was attributed to the Zr-Ofollowing equation: Zr bond, that at 530.5 eV was the Zr-O-P bond, that at The RGR= OD of the experimental group - OD of the 531.9”
Hong 等 - 2020 - Mechanical Properties of Nanohybrid Resin Composit DOI: 10.2147/IJN.S283742 -
Metal oxygen confianza 1,0
“August Ti-O withXRDresults.85,86InFig.8b-dwiththeadditionofdopant,dat 531.8 eV in O 1s spectra corresponds to and similarly, a under Ti-O Zr-O Zr-TiO peak positioned at 529.8 eV ascribes to and in spacing of nanoparticles was slightly enlar”
Photocatalytic and bactericidal properties and molecular docking analysis of TiO2 nanoparticles conjugated with Zr for environmental remediation DOI: 10.1039/d0ra05862a -
confianza 1,0
“cm-1 cm-1 cm-1 brations at 3639 cm-1 for -OH, 2860 cm-1 for -C-H, 2487 cm-1 for -C≡C-, 1625 cm-1 for -N-H, -C≡C-, vibrations at 3639 for -OH, 2860 for -C-H, 2487 for 1625 for cm-1 cm-1 cm-1 for -COOH, 1053 cm-1 for -C-F, and 530 cm-1 for Ca”
Biosynthesis and Characterization of Calcium Oxide Nanoparticles from Citrullus colocynthis Fruit Extracts; Their Biocompatibility and Bioactivities DOI: 10.3390/ma16072768 -
confianza 1,0
“The peak at 529.8(1) eV belongs to lattice oxygen atoms [29].”
Vanadium pentoxide nanobelts: One pot synthesis and its lithium storage behavior DOI: 10.1002/crat.201200122 -
confianza 1,0
“FTIR absorption band centered at 530 attributes to the Ti-O-Ti bond that further indicates high purity of the samples.”
conferenceseries.iop.org materials science and engineering open access proceedings IOP Conferences Series: Materials Science and Engineering DOI: 10.1088/1757-899X/577/1/012087 -
Acetate confianza 1,0
“The O 1s peak at 530 eV representing C-O group of alcoholic and ether can be fitted”
Enhanced arsenic (iii) adsorption from aqueous solution by magnetic pine cone biomass DOI: 10.1016/j.matchemphys.2018.09.067
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