What absorbs at 815 cm⁻¹ in an FTIR spectrum?
A band near 815 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 8 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 0,9 |
| C-O single bond | 1 | 1 | 0,9 |
| Phosphate (PO4) | 1 | 1 | 0,8 |
| Aromatic ring | 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
-
Silicon-oxygen (Si-O) confianza 1,0
“Band assigned to Si-O-C bonds”
Decostanzi 等 - 2019 - Eugenol-based thermally stable thermosets by Alder DOI: 10.1002/app.39269. -
C-O single bond confianza 0,9
“Explicit assignment: 'bands at 815 C-O-C'”
Pianorsi 等 - 2017 - Organogels for the cleaning of artifacts DOI: 10.1515/pac-2016-0908 -
confianza 0,9
“Assigned to intersubband transition.”
Wang 等 - 2019 - Nano-FTIR Spectroscopy of Intersubband Polaritons DOI: 10.1021/acs.nanolett.9b01623 -
Siloxane (Si-O-Si) confianza 0,9
“Attributed to Si-O-Si group”
Xie 等 - 2018 - Research on Ecological Dyeing of Silane-Modified P DOI: 10.2115/fiberst.2018-0021 -
Phosphate (PO4) confianza 0,8
“Stretching groups from nucleic acids.”
Barnas 等 - 2020 - Simultaneous FTIR and Raman Spectroscopy in Endome DOI: 10.3390/ijms21144828 -
confianza 0,8
“Peak indicates presence of γ-terpinene”
Grgac 等 - 2022 - Hydrothermal Synthesis of Chitosan and Tea Tree Oi DOI: 10.3390/ma15145034 -
Aromatic ring confianza 0,7
“distinct aromatic cm-1 ≈815”
D'Angelo 等 - 2013 - Fossil cutin of Macroneuropteris scheuchzeri (Late DOI: 10.1016/j.coal.2012.10.012 -
confianza 0,7
“Text mentions 'other deformations in other functional groups in bands close to ~815'”
Pinzon-Moreno 等 - 2022 - Degradation of Hydrogels Based on Potassium and So DOI: 10.3390/polym14132656
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