What absorbs at 1352 cm⁻¹ in an FTIR spectrum?
A band near 1352 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
Schnelle Antwort
A band near 1352 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.
Mögliche Funktionsgruppenzuweisungen
| Funktionelle Gruppe | Unterstützende Fakten | Zitierte Quellen | Höchstes Vertrauen |
|---|---|---|---|
| Carboxyl (COOH) | 4 | 3 | 1,0 |
| Secondary amine | 2 | 2 | 1,0 |
| Amide | 2 | 2 | 1,0 |
| Aromatic ring | 2 | 2 | 1,0 |
| Water (H2O) | 2 | 2 | 1,0 |
| Phosphate (PO4) | 2 | 2 | 1,0 |
| Alkyl C-H | 2 | 2 | 1,0 |
| S eq o | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Carbon dioxide | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
Das Ranking spiegelt die gesammelte Literatur Evidenz wider, nicht eine einzelne maßgebliche Regel. Bestätigen Sie immer anhand Ihres Probenkontexts.
Mögliche Materialien
| Material | Unterstützende Peaks | Überlappende Gruppen | Zitierte Quellen |
|---|---|---|---|
| ZnO | 1352, 1400, 3430 | Amide | 1 |
| SnO2 | 1352, 2800, 1547 | Amide | 1 |
| ZnO nanoparticles | 1352, 1219, 1726 | Amide, Carboxyl (COOH) | 1 |
| silver nanoparticles | 1352, 1636, 1631 | Amide | 1 |
Materialien werden nur angezeigt, wenn derselbe Literaturpool diese Bande und mindestens einen weiteren charakteristischen Peak unterstützt.
Spektrumslogik
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 1352 cm⁻¹ is usually not enough for material identification by itself.
Praktische Anwendung
Diese Art von Abfrage ist üblich bei der Polymeridentifikation, dem Screening unbekannter Kunststoffe, der Fehlersuche in der Qualitätskontrolle, der Verifizierung von Recyclingmaterial und der literaturgestützten Überprüfung der Peakzuordnung.
Häufige Fehler
- Behandlung einer isolierten Bande als Beweis für ein Material, ohne mindestens einen oder zwei unterstützende Peaks zu überprüfen.
- Überlappung ignorieren: Mehrere funktionelle Gruppen können nahe der gleichen Wellenzahl beitragen.
- Überspringen der Validierung, wenn Additive, Mischungen, Oxidation oder Verunreinigungen das Spektrum verfälschen können.
Beratung zur Verifizierung
Wenn weiterhin Mehrdeutigkeit besteht, validieren Sie die Hypothese mit DSC, GC-MS oder TGA, insbesondere bei Mischungen, degradierten Proben und gefüllten Polymeren.
Literatur hinter diesen Zuweisungen
-
Alkyl C-H Vertrauen 1,0
“Spectral peak at 1352 shows the cm-1 presence of deforming of C-H alkyl while 2882 indicates the presence of str-C-H alkyl stretching.”
Diantoro 等 - 2018 - Control of Dielectric Constant and Anti-Bacterial DOI: 10.1088/1757-899X/367/1/012012 -
Carboxyl (COOH) Vertrauen 1,0
“As the sample is cm-1 have heated above 500 K, the peaks at 1362 and 1387 cm-1 disappeared and two new peaks appear at 1352 and 1400 (Figure 6c, 590 K) indicative of the formate species undergoing (COO-) bound to the deprotonation to a carb”
Durand 等 - 2010 - Reaction of Formic Acid over Amorphous Manganese O DOI: 10.1021/jp104629j -
Carboxyl (COOH) Vertrauen 1,0
“A peak at 1352 cm-1 might be due to carboxylic acid.”
Pauzi 等 - 2019 - Microwave-assisted Synthesis of ZnO Nanoparticles DOI: 10.9767/bcrec.14.1.3320.182-188) -
Vertrauen 1,0
“noticeable peak in both samples at 1352 and 1382 cm-1, which is linked to the presence of calcium phosphates and CO and C=O groups, which can be evidenced in the characteri-”
Influence of the Alcoholic/Ethanolic Extract of Mangifera indica Residues on the Green Synthesis of FeO Nanoparticles and Their Application for the Remediation of Agricultural Soils DOI: 10.3390/molecules26247633 -
Alkyl C-H Vertrauen 1,0
“Similar results regarding the of vibrational peaks at 1592, 1352, and The main reflection 1592cm-1 Braggs of AgNPs were reported previously (Nouri et al., positional peak was observed at and corresponded to 2020;Dawoudetal.,2021;Elshafeieta”
Dhaka 等 - 2022 - Balanites aegyptiaca leaf extract-mediated synthes DOI: 10.3389/fbioe.2022.977101 -
Phosphate (PO4) Vertrauen 1,0
“The intense Raman bands from 1086 specific to (PO cm-1 units and O-P-O Raman bands from 1352 and 1369 in the case of Er and, respectively, Yb-Erdoped glasses certify the change of the local symmetry.”
Elisa 等 - 2021 - Peculiarities of the structural and optical proper DOI: 10.1002/bltj.20400. -
Hydroxyl (O-H) Vertrauen 1,0
“1352.06cm-1 1654cm-1 and (O-H stretching of aromatic ring) [40].”
Farmoudeh 等 - 2020 - Solid Dispersion Pellets An Efficient Pharmaceuti DOI: 10.1155/2020/8583540 -
Water (H2O) Vertrauen 1,0
“Weathered materials such as jarLycopodium samples containing spore concentrations of ositic clay contain significant amounts of water and produce 0.5% and 1.0%, it was observed that the extent to which the stronger water signals at lower te”
Gordon 和 Sephton - 2016 - Organic Matter Detection on Mars by Pyrolysis-FTIR DOI: 10.1089/ast.2016.1485
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