What absorbs at 2844 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 2844 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 5 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1,0 |
| Carbon dioxide | 1 | 1 | 1,0 |
| Lipid | 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
“of2850-3000 stretch Variations in the range may be due FIGURE 4 (pbi-Br) XRD pattern of the 2Ir(acac) complex to double bonded =CH stretching, peaking at 2843.71 and 2 (pbi-Br) 2Ir(acac) complex exhibited no weight A thermogram of the cm-1”
Synthesis and characterization of a green‐light‐emitting (pbi‐Br)2Ir (acac) metal complex for OLEDs DOI: 10.1002/bio.3565 -
confianza 1,0
“cm-1, diamond films prepared by CVD, are deposited under relative that for the ND sample, it has a new peak at 2844 which low pressure low temperature conditions where diamond is in we think is related to nitrogen impurity incorporation due”
Tang 等 - 2007 - A comparison study of hydrogen incorporation among DOI: 10.1016/j.tsf.2006.10.132 -
Lipid confianza 1,0
“The peaks at 2952 cm-1, 2914 cm-1 and 2844 were characteristic peaks for polyethylene (PE)/paraffin wax (PW).”
Fabrication and Performance of Phase Change Thermoregulated Fiber from Bicomponent Melt Spinning DOI: 10.3390/polym14091895 -
Carbon dioxide confianza 1,0
“Interestingly, the bands at 2916 and 2851 cm-1 in black tea shifted when the Co2+ polyphenol complexes formed, instead appearing at 2913 and 2844 cm-1, respectively.”
Polymer Composites with 0.98 Transparencies and Small Optical Energy Band Gap Using a Promising Green Methodology: Structural and Optical Properties DOI: 10.3390/polym13101648 -
Alkyl C-H confianza 1,0
“observed, and for both PC1 and PC2 a minimum peak at ~2844 was detected, pointing to CH 3 and CH symmetric stretching vibrations, respectively (Figure 1D).”
Effects of Cannabis Use on the Protein and Lipid Profile of Olfactory Neuroepithelium Cells from Schizophrenia Patients Studied by Synchrotron-Based FTIR Spectroscopy DOI: 10.3390/biom10020329
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