What absorbs at 756 cm⁻¹ in an FTIR spectrum?
A band near 756 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 7 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Metal oxygen | 2 | 2 | 0,9 |
| Alkyl C-H | 2 | 2 | 0,9 |
| Chlorine | 1 | 1 | 0,9 |
| Aromatic ring | 1 | 1 | 0,8 |
| Siloxane (Si-O-Si) | 1 | 0 | 0,9 |
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
-
Alkyl C-H confianza 0,9
“Stretching and deformation of C-H, assigned to crystalline phase”
Gupta 等 - 2018 - Effects of Amphiphilic Chitosan on Stereocomplexat DOI: 10.1038/s41598-018-22281-1 -
Chlorine confianza 0,9
“C-Cl.”
Hegde 等 - 2018 - Synthesis and Antimicrobial Screening of Pyrimidin DOI: 10.5012/jkcs.2018.62.2.87 -
Metal oxygen confianza 0,9
“Stretching vibrations of titanium dioxide”
Mpelane 等 - 2020 - Application of Novel C-TiO2-CFAPAN Photocatalytic DOI: 10.3390/catal10080909 -
Metal oxygen confianza 0,9
“Sharp and intense band at 756 cm-1 indicating Zn-O vibration.”
Sha 等 - 2022 - A realistic perspective for CO2 triggered tuning o DOI: 10.1039/d2ra05511b -
Aromatic ring confianza 0,8
“Snippet: 'absorption pattern at 756, 768 and 833 represents the aromatic C-H group that are associated with typical mono-substituted benzene ring'.”
Ahmad 等 - 2020 - Green Synthesis and Characterization of Zinc Oxide DOI: 10.3390/biom10030425 -
Alkyl C-H confianza 0,8
“Peak at 756 cm-1 assigned to out-plane vibration of C-H.”
Li 等 - 2020 - The Synthesis of Polymeric Nanospheres and the App DOI: 10.3389/fchem.2020.00247 -
confianza 0,8
“Band derived from chloroform mentioned.”
Oleszko 等 - 2015 - Application of FTIR-ATR Spectroscopy to Determine DOI: 10.1155/2015/245607
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