What absorbs at 2871 cm⁻¹ in an FTIR spectrum?
A band near 2871 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 6 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 0,95 |
| Lipid | 1 | 1 | 0,7 |
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 0,95
“Explicit assignment: -CH2 Group Symmetric Stretching ~2871, -CH Group Symmetric Stretching ~2871”
Faiza 等 - 2022 - Degradation Performance Investigation of Hydrother DOI: 10.3390/polym14061094 -
Alkyl C-H confianza 0,9
“Text states 'absorption bands at 2959 and 2871 and CH2'.”
Gnatyuk 等 - 2018 - 2D-BN nanoparticles as a spectroscopic marker and DOI: 10.1039/c8ra05085f -
Alkyl C-H confianza 0,9
“Text: 'C-H vibrations (near 2936 and 2871)'.”
Ltifi 等 - 2018 - Physicochemical characteristics of organophilic cl DOI: 10.1007/s13201-018-0732-8 -
confianza 0,8
“Characteristic of alkane homologues due to CH2CH functional.”
Elemike 等 - 2017 - Synthesis, crystal structures, quantum chemical st DOI: 10.1016/j.molstruc.2017.06.104 -
Alkyl C-H confianza 0,8
“Text: '2871 for symmetric modes' and 'sp3-C-H constant'.”
Gupta 等 - 2004 - Synthesis of DLC films by electrodeposition techni DOI: 10.1016/j.diamond.2004.02.006 -
Lipid confianza 0,7
“Listed as major peak of lipid region.”
Saladrigas-Manjon 等 - 2020 - Effects of Cannabis Use on the Protein and Lipid P DOI: 10.3390/biom10020329
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