What absorbs at 3410 cm⁻¹ in an FTIR spectrum?
A band near 3410 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
Quick answer
A band near 3410 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
Possibili assegnazioni di gruppi funzionali
| Gruppo funzionale | Fatti di supporto | Fonti citate | Affidabilità massima |
|---|---|---|---|
| Hydroxyl (O-H) | 30 | 29 | 1,0 |
| N h | 9 | 9 | 1,0 |
| Water (H2O) | 9 | 8 | 1,0 |
| Alkyl C-H | 8 | 7 | 1,0 |
| Hydrogen bond | 3 | 3 | 1,0 |
| Amide | 3 | 3 | 1,0 |
| Secondary amine | 3 | 3 | 1,0 |
| Carboxyl (COOH) | 2 | 2 | 1,0 |
| Ester | 2 | 2 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Urea | 1 | 1 | 1,0 |
| Silanol (Si-OH) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
La classifica riflette le prove bibliografiche accumulate, non una singola regola autorevole. Conferma sempre nel contesto del tuo campione.
Possible materials
| Materiale | Picchi di supporto | Overlapping groups | Fonti citate |
|---|---|---|---|
| chitosan | 3410, 1650, 1655 | Alkyl C-H, Hydroxyl (O-H), N h | 1 |
| ZnO | 3410, 1400, 3430 | Hydroxyl (O-H), Alkyl C-H | 1 |
| TiO | 3410, 1730, 1699 | Alkyl C-H, Hydroxyl (O-H) | 1 |
| nanocomposites | 3410, 1717, 1630 | Alkyl C-H, Hydroxyl (O-H) | 1 |
Materials are shown only when the same literature pool supports this band and at least one additional characteristic peak.
Spectrum logic
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 3410 cm⁻¹ is usually not enough for material identification by itself.
Real-world usage
This type of query is common in polymer identification, unknown plastic screening, QC troubleshooting, recycled-material verification, and literature-backed peak assignment review.
Common mistakes
- Treating one isolated band as proof of a material without checking at least one or two supporting peaks.
- Ignoring overlap: multiple functional groups can contribute near the same wavenumber.
- Skipping validation when additives, blends, oxidation, or contamination may distort the spectrum.
Verification advice
When ambiguity remains, validate the hypothesis with DSC, GC-MS, or TGA, especially for blends, degraded samples, and filled polymers.
Letteratura dietro queste assegnazioni
-
Hydroxyl (O-H) affidabilità 1,0
“LLM confirmed rule peak-group candidate”
Cheng 等 - 2011 - The Research on the Longitudinal Tensile Strength DOI: 10.4028/www.scientific.net/AMR.183-185.2014 -
Hydroxyl (O-H) affidabilità 1,0
“The bands at 3410.15 and 1627.92 are assigned to O-H stretching and bending vibrations.”
Deswardani 等 - 2017 - Study of Structural and Magnetic Properties of Sil DOI: 10.1088/1757-899X/202/1/012047 -
Hydroxyl (O-H) affidabilità 1,0
“This spectrum has three important peaks at 3410, 1700-1000, and 600 The cm-1 peak at 3410 is attributed to the hydroxyl groups, as explained before.”
Sensitization of ZnO nanoparticle by vitamin B12: Investigation of microstructure, FTIR and optical properties DOI: 10.1016/j.materresbull.2016.07.029 -
affidabilità 1,0
“The peak at about 3409.6 cm-1 corresponds to the N-H stretching , which indicates the formation of polymer[9,10].”
Li 等 - 2013 - Synthesis and Microwave Absorption Characteristics DOI: 10.4028/www.scientific.net/AMM.327.53 -
N h affidabilità 1,0
“When 5%[AMIM]Cl-PFSA composite membranes was compared conversion rate is 1.5%, decomposition temperature of with PFSA membrane, resulting in a new peak vibration: cm-1 cm-1 triethylamine pretreated and the PFSA film distributed at 3410 is N”
Thermal stability and lifetime of [AMIM]Cl-PFSA composite membranes DOI: 10.1007/s10973-016-6065-7 -
Alkyl C-H affidabilità 1,0
“4 Fourier transform cm-1 cm-1 2926-2877 and distinct 967-1195 (C-H stretching) infrared spectroscopic (FTIR) cm-1 peak at 1087 3410cm1(Stretching (Skeletal spectra of experimentally stretching vibration”
Development of chitosan based optimized edible coating for tomato (Solanum lycopersicum) and its characterization DOI: 10.1007/s13197-018-3162-6 -
Hydroxyl (O-H) affidabilità 1,0
“For the nanocomposites, a cm-1 FeCl also dissolved in chloroform was added dropwise, and broad band at 3410 indicates the presence of OH groups 3”
Sehgal 和 Narula - 2015 - Structural, morphological, optical, and electrical DOI: 10.1007/s00396-015-3663-z -
Alkyl C-H affidabilità 1,0
“In contrast 0.0 cm-1, to untreated TiO, a strong peak at 1300 -80 -60 -40 -20 0 20 assignable to the Ti-O stretching vibrations, peak at Zeta Potential (mV) cm-1, assignable to the C=O stretching vibrations, 474 3: Zeta potential of TiO nan”
Singh 等 - 2016 - FT-IR and Zeta Potential Measurements on TiO Nanop DOI: 10.1063/1.4948233
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