What absorbs at 3453 cm⁻¹ in an FTIR spectrum?
A band near 3453 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 5 | 1,0 |
| Silanol (Si-OH) | 1 | 1 | 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
-
Hydroxyl (O-H) confianza 1,0
“Explicit assignment in text: 'the broad peaks at 3453.30 are assigned to the OH stretching vibrations'”
Zheng 等 - 2022 - Microwaveand ultrasonic-assisted synthesis of 2D DOI: 10.1039/d2ra05506f -
Hydroxyl (O-H) confianza 0,9
“Explicit assignment: O-H stretching vibration of water molecules”
Veerasingam 等 - 2020 - Ionic liquid mediated morphologically improved lan DOI: 10.1016/j.jre.2019.06.006 -
Hydroxyl (O-H) confianza 0,9
“Explicitly assigned to hydroxyl peak.”
Ashrafi 等 - 2017 - DIRECT ACETYLATION OF SUNFLOWER OIL IN THE PRESENC DOI: 10.4314/bcse.v31i1.4 -
Hydroxyl (O-H) confianza 0,9
“Broad absorption band with maximum at 3453 cm-1 assigned to -OH groups.”
Goliszek 等 - 2020 - Preparation, Thermal, and Mechanical Characterizat DOI: 10.3390/polym12051159 -
Silanol (Si-OH) confianza 0,9
“Stretching vibration of Si-OH groups.”
Nguyen 等 - 2021 - High CO Adsorption Performance of CuCl-Modified Di DOI: 10.1155/2021/9762578 -
Hydroxyl (O-H) confianza 0,8
“O-H stretching vibrations in Fe(OH) flocs”
Sakthisharmila 等 - 2017 - A characteristic study on generation and interacti DOI: 10.1016/j.molliq.2017.01.106 -
confianza 0,7
“Six main functional groups centered at these wavenumbers”
Chelu 等 - 2023 - High-Content Aloe vera Based Hydrogels Physicoche DOI: 10.3390/polym15051312
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