What absorbs at 3458 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 3458 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 8 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Hydroxyl (O-H) | 10 | 10 | 1,0 |
| C-O single bond | 3 | 3 | 1,0 |
| Methoxy (OCH3) | 2 | 2 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| Hydrogen bond | 1 | 1 | 1,0 |
| Chitosan | 1 | 1 | 1,0 |
| C c single bond | 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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Hydroxyl (O-H) confianza 1,0
“C-H (aliphatic), and O-H are attributed to the bands at 1422, 1608, 2931, and 3420 cm-1 cm-1 cm-1 O-H stretching at 3458 and C-H stretching at 2902 are both absorption bands [26].”
Aziz 等 - 2022 - The Study of Ion Transport Parameters in MC-Based DOI: 10.3390/membranes12020139 -
Hydroxyl (O-H) confianza 1,0
“The broad spectrum of -OH vibration at 3458 almost all the vibration of oxygen-functional group, such as, C=O carbonyl and C-O epoxy is”
Sugianto 等 - 2019 - Facile Synthesis of Lycopene Reduced Graphene Oxid DOI: 10.1088/1757-899X/546/4/042044 -
Hydroxyl (O-H) confianza 1,0
“The hydroxyl band observed for the pure MC can be ascribed to the wavenumber region 3447-3458 cm-1, though the ether band needs to be at 1066 cm-1 and 1110 cm-1 [56].”
Synthesis of Polymer Nanocomposites Based on [Methyl Cellulose](1-x):(CuS)x (0.02 M x 0.08 M) with Desired Optical Band Gaps DOI: 10.3390/polym9060194 -
C c single bond confianza 1,0
“CH=CH, C=O, S=O (gliben- ---------- 2683 cm-1 The absorption peaks observed at 2412 and 793 are associated clamide) with C-C, CH, C-O, and OH bending vibrations, while the absorption NH asym stretching and OH 3458, 3295 ---------- cm-1 band”
Delgadillo-Armendariz 等 - 2014 - INTERACTIONS OF CHITOSANGENIPIN HYDROGELS DURING DOI: 10.5935/0100-4042.20140243 -
Hydroxyl (O-H) confianza 1,0
“[cm-1] Wave number Assignment a b 3458 3557 OH stretching”
Heidarieh 等 - 2014 - Preparation and anatomical distribution study of G DOI: 10.2478/nuka-2014-0019 -
Hydroxyl (O-H) confianza 1,0
“2 pump.Theformedelectrosprayedsamplesweredriedovernight 3 broad band at 3458 was attributed to O-H stretching due to the at room temperature and then separated from the surface of presence of water.”
Jahangiri 等 - 2022 - Dissolution improvement of binary solid dispersion DOI: 10.1093/biomethods/bpac001 -
Acetate confianza 1,0
“(O-H bond) was found at 3457.7 stretching vibration for alcoholic C-O bond was found at 1120”
Liquid fuel oil produced from plastic based medical wastes by thermal cracking DOI: 10.1038/s41598-021-96424-2 -
Hydroxyl (O-H) confianza 1,0
“LLM confirmed rule peak-group candidate”
Sun 等 - 2020 - Electrosprayed Polymeric Nanospheres for Enhanced DOI: 10.2147/IJN.S235146
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