What absorbs at 1279 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 1279 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 | 3 | 3 | 1,0 |
| C-O single bond | 2 | 2 | 1,0 |
| Ring structure | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 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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Carbonyl (C=O) confianza 1,0
“platensis grown photoautotrophically under nitrogen cm-1 and 1279 for the carbonyl (C=O) stretching of the ester (-N).”
Enhanced polyhydroxybutyrate (PHB) accumulation in heterotrophically grown Arthrospira platensis under nitrogen deprivation DOI: 10.1007/s10811-020-02272-4 -
Alkyl C-H confianza 1,0
“AM-3 Compound exhibited characteristic peaks at 2790.07, 1443.55 (C-C stretching vibration of thiophene), 1357.21 (C-N and N-N stretching vibration), 1278.82 (in-plane C-H stretching vibration cm-1,”
Novel Hemocompatible Imine Compounds as Alternatives for Antimicrobial Therapy in Pharmaceutical Application DOI: 10.3390/pr8111476 -
Ring structure confianza 1,0
“(cm-1) Frequency Band Assignment Species C-H 929 out-of-plane deformation 1018 Ring deformation 1081 Furfural 1156 =C-O-C= ring vibration 1279 1570 C=C stretches 1696 C=O aldehyde stretch 1671 C-O 1163 acid stretch vibration 1369 CH symmetr”
Solubility Temperature Dependence of Bio-Based Levulinic Acid, Furfural, and Hydroxymethylfurfural in Water, Nonpolar, Polar Aprotic and Protic Solvents DOI: 10.3390/pr9060924 -
C-O single bond confianza 1,0
“at 1279, 1254 and 1239 bending vibrations d(C-OH) Additionally, the stoichiometric ratio between Ti of the phenolic group at 1365, 1184, 1163, and surf”
Jankovic 等 - 2010 - New Hybrid Properties of TiO2 Nanoparticles Surfac DOI: 10.1007/s11671-009-9447-y -
C-O single bond confianza 1,0
“LLM confirmed rule peak-group candidate”
Leptolyngbya sp. NIVA-CYA 255, a Promising Candidate for Poly(3-hydroxybutyrate) Production under Mixotrophic Deficiency Conditions DOI: 10.3390/biom12040504 -
Alkyl C-H confianza 1,0
“The bands that appeared cm-1 at 1279 and 1229 correspond to C-H twisting vibrations.”
FTIR and Raman Characterization of TiO2 Nanoparticles Coated with Polyethylene Glycol as Carrier for 2-Methoxyestradiol DOI: 10.3390/app7010049 -
Alkyl C-H confianza 1,0
“cm-1 exhibited by refined palm pulp oil should be assigned to in plane = C-H deformation 1279 cm-1 bond.[27] in an unconjugated cis double The peak between 1172 and 1145 (with its cm-1), 1115-1104 1243-1236”
Crude and refined oils from Elaeis guineensis: Facile characterization by FTIR and thermal analysis DOI: 10.1080/10942912.2017.1372470
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