What absorbs at 976 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 976 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 7 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 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
“cm-1 The bands at 975.9, 889.1 and 858.2 are present in both AEMs and are cm-1 associated with the C-H presence [34,44,45].”
Barros 等 - 2020 - A three-stage chemical cleaning of ion-exchange me DOI: 10.1016/j.desal.2020.114628 -
Hydroxyl (O-H) confianza 1,0
“(d) Espectro de absorção na região do infravermelho da vermiculita expandida lavada com H 2O cm-1 em 1651,1 é gerada pela deformação angular O-H da água, e Para verificar uma alteração nas propriedades físicas da cm-1 a banda intensa em 976”
Beluco 等 - 2023 - CHARACTERIZATION OF SOLID RESIDUES THROUGH THERMAL DOI: 10.21577/0100-4042.20230007 -
Alkene (C=C) confianza 1,0
“The wavenumbers at 973 and 976 cm-1 can be assigned to secondary oxidation These results suggest that CBLO produced more trans double bonds and secondary oxiproducts, such as aldehydes or ketones, supporting isolated trans-double bonds [49]”
Chitosan-Based Anti-Oxidation Delivery Nano-Platform: Applications in the Encapsulation of DHA-Enriched Fish Oil DOI: 10.3390/md19080470 -
Alkyl C-H confianza 1,0
“cm-1 The peaks at 976, 834, and 720 are corresponding to (a) the stretching vibration of the -CH group and the bending 2 vibrations of C-H of the aromatic ring [70].”
Radiation Synthesis of Edible Coating Films of Nanocurcumin Based on Carboxymethyl Chitosan/Polyvinyl Alcohol to Extend the Shelf Life of Sweet Orange "Valencia" DOI: 10.1007/s10924-023-02854-6 -
Silicon-oxygen (Si-O) confianza 1,0
“LLM confirmed rule peak-group candidate”
The long-term failure mechanisms of alkali-activated slag mortar exposed to wet-dry cycles of sodium sulphate DOI: 10.1016/j.cemconcomp.2020.103893 -
confianza 1,0
“For the band group, the band at 976 was assigned cm-1 cm-1 (ν to the S-O symmetric stretching vibration 1), while the bands at 1130 and 1058 (ν were assigned to asymmetric stretching vibrations 3).”
The Competitive Adsorption of Chromate and Sulfate on Ni-Substituted Magnetite Surfaces: An ATR-FTIR Study DOI: 10.3390/min11010088 -
Protein confianza 1,0
“geophilum showed a specific peak at ric bending variations in proteins, were identified in mixed forest 990cm-1 976cm-1 1453cm-1, and lacked the shoulders to and found in samples of C.”
Ectomycorrhizal identification in environmental samples of tree roots by Fourier-transform infrared (FTIR) spectroscopy DOI: 10.3389/fpls.2014.00229
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