What absorbs at 1434 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 1434 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 6 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 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.
Literatura detrás de estas asignaciones
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Alkyl C-H confianza 1,0
“The shift in bending of CH vibrations 1434 2 2928 a 1642 cmK1 1237 are from 1438 to 1434, 1430 indicates the chemical 3423”
Bhajantri 等 - 2006 - Microstructural studies on BaCl2 doped poly(vinyl DOI: 10.1016/j.polymer.2006.03.054 -
Carboxyl (COOH) confianza 1,0
“We will walk through the assignment of the , three new peaks grow at 1434, 1443, and acm-1, [Mg:EDTA]2coefficient COO band using the participation method, which 1462 while in , four new peaks appear”
CH Mode Mixing Determines the Band Shape of the Carboxylate Symmetric Stretch in Apo-EDTA, Ca2+–EDTA, and Mg2+–EDTA DOI: 10.1021/acs.jpca.1c03061 -
confianza 1,0
“L-1, 27 This SERS method has a wide logarithmic range of 0.0069-6.9 mg with L-1 cm-1, cm-1, 28 μg detection limit of 0.78, 3.4, 0.51 at the peak of 1143 1392 and 1434 cm-1, 29 respectively.”
4-Aminothiophenol capped Halloysite Nanotubes/Silver Nanoparticles as Surface-enhanced Raman Scattering Probe for In-situ Derivatization and Selective Determination of Nitrite Ions in Meat Product DOI: 10.1016/j.talanta.2020.121366 -
Protein confianza 1,0
“Moreover, the damage of the integrity of the triple helix of collagen is indicated by the ratio of the cm-1 cm-1 intensities of the bands from 1434 (for P1) and 1415 (for P2) and of amide III, which is 1434)/I(A = 0.144/0.100 = P1: I(A 1236”
The Comparative Study of the State of Conservation of Two Medieval Documents on Parchment from Different Historical Periods DOI: 10.3390/ma13214766 -
Carbohydrate confianza 1,0
“The peaks of the spectra were whereas the band at 1434 confirms CH 2 assigned to the corresponding functional groups symmetric bending in cellulose.”
Muthukumar 和 Chidambaram - 2023 - ISOLATION AND QUANTIFICATION OF CELLULOSE FROM VAR DOI: 10.35812/CelluloseChemTechnol.2021. -
Alkyl C-H confianza 1,0
“PC3 corresponds to the core spectrum and presents the distinctive amide I symmetric peak of cm-1,15 β-sheet whilst PC2 represents the ring, with resonances due to lipids (distinctive bands at 1434 (CH deformation) the conformation at 1667 2”
Detection of Aβ plaque-associated astrogliosis in Alzheimer's disease brain by spectroscopic imaging and immunohistochemistry DOI: 10.1039/c7an01747b
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