What absorbs at 3323 cm⁻¹ in an FTIR spectrum?
A band near 3323 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 6 cited sources
Possibili assegnazioni di gruppi funzionali
| Gruppo funzionale | Fatti di supporto | Fonti citate | Affidabilità massima |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 3 | 1,0 |
| Amide | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
La classifica riflette le prove bibliografiche accumulate, non una singola regola autorevole. Conferma sempre nel contesto del tuo campione.
Letteratura dietro queste assegnazioni
-
Amide affidabilità 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 affidabilità 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) affidabilità 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) affidabilità 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) affidabilità 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) affidabilità 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
Hai uno spettro con questa banda?
Carica il tuo spettro FTIR e ottieni un report di interpretazione completo — assegnazioni di picchi con citazioni bibliografiche, corrispondenze con librerie e una catena di prove con valutazione di affidabilità — in secondi.
Interpreta il mio spettro