What absorbs at 3323 cm⁻¹ in an FTIR spectrum?
Una banda cerca de 3323 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 7 cited sources
Posibles asignaciones de grupos funcionales
| Grupo funcional | Hechos de respaldo | Fuentes citadas | Confianza máxima |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 4 | 1,0 |
| Amide | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 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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Amide confianza 1,0
“The amide A absorption peak of PSC at cm-1 cm-1, 3323.20 is slightly higher than ASC at the wavenumber of 3327.06 indicating that more N-H groups in the ASC are hydrogen-bonded, which suggested that the PSC is slightly weaker than Mar.”
Song 等 - 2019 - Physicochemical and Biocompatibility Properties of DOI: 10.3390/md17030137 -
Amide confianza 1,0
“irradiation with Co gamma rays and the spectrum changed cm-1) cmBoth amide A (3323 and amide B band (3057 notably as a function of doses.”
Bessalah 等 - 2023 - Effect of Gamma Radiation on Novel Gelatin Extract DOI: 10.17582/journal.pjz/20220218020207 -
Hydroxyl (O-H) confianza 1,0
“cm-1 The FTIR spectrum of CS exhibits typical bands at 3323 (stretching vibration of [31]: H2 of the glucosamine unit, H3, H4, H5, and H6 of the glucopyranose moieties, and cm-1 O-H and N-H bonds) and around 2900 (C-H symmetric and asymmetr”
Cojocaru 等 - 2022 - Electrospun Nanofibrous Membranes Based on Citric DOI: 10.3390/polym14020294 -
Carbonyl (C=O) confianza 1,0
“After storage for 36 month a decrease in intensity of bands at 1738 (HS), 1708 cm-1, following bands are identified: low-intense peak of carbonyl stretching at 1729 wide (HS-SS) cm-1 and growth of intensity of band at 1721 (SS-SS) cm-1 with”
The Influence of Long-Time Storage on the Structure and Properties of Multi-Block Thermoplastic Polyurethanes Based on Poly(butylene adipate) Diol and Polycaprolactone Diol DOI: 10.3390/ma16020818 -
Hydroxyl (O-H) confianza 1,0
“LLM confirmed rule peak-group candidate”
Manufacturing and Characterization of Novel Electrospun Composite Comprising Polyurethane and Mustard Oil Scaffold with Enhanced Blood Compatibility DOI: 10.3390/polym9050163 -
Hydroxyl (O-H) confianza 1,0
“cm-1 In the PVA spectrum, a wideband centered at 3323 of stretching corresponding to the OH In the PVA spectrum, a wideband centered at 3323 cm-1 of stretching corresponding to the OH cm-1 group is observed [52].”
Judith Valdez-Alegria 等 - 2020 - Synthesis of Chitosan-Polyvinyl Alcohol Biopolymer DOI: 10.3390/biom10010156 -
Hydroxyl (O-H) confianza 1,0
“cm-1 study, such as the OH stretch vibration bands at 3323 At 120 days post-implantation, the newly formed bone area in the critical defect treated with the CPU scaffold was ~3.6 and symmetrical and asymmetric stretch bands in the region”
Polyurethane derived from castor oil monoacylglyceride (Ricinus communis) for bone defects reconstruction: characterization and in vivo testing DOI: 10.1007/s10856-021-06511-z
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