What absorbs at 3364 cm⁻¹ in an FTIR spectrum?
A band near 3364 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
Përgjigje e shpejtë
A band near 3364 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.
Caktime të mundshme të grupeve funksionale
| Grup funksional | Fakte mbështetëse | Burimet e cituara | Besueshmëri e lartë |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 5 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| N h | 2 | 2 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Amine primary | 1 | 1 | 1,0 |
Renditja pasqyron provat e grumbulluara të literaturës, jo një rregull të vetëm autoritar. Gjithmonë konfirmoni në kontekstin e mostrës suaj.
Materialet e mundshme
| Material | Maja mbështetëse | Grupe të mbivendosura | Burimet e cituara |
|---|---|---|---|
| graphene | 3364, 1720, 2097 | Methacrylate, Acetate, Hydroxyl (O-H) | 1 |
| GO | 3364, 1720, 1182 | Methacrylate, Acetate, Hydroxyl (O-H) | 1 |
Materialet shfaqen vetëm kur i njëjti grup literature mbështet këtë brez dhe të paktën një pik karakteristik shtesë.
Logjika e spektrit
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 3364 cm⁻¹ is usually not enough for material identification by itself.
Përdorimi në botën reale
Ky lloj pyetjeje është i zakonshëm në identifikimin e polimereve, skriningun e plastikës së panjohur, zgjidhjen e problemeve të kontrollit të cilësisë, verifikimin e materialeve të ricikluara dhe rishikimin e caktimit të pikut të mbështetur nga literatura.
Gabimet e zakonshme
- Trajtimi i një brezi të izoluar si provë e një materiali pa kontrolluar të paktën një ose dy pika mbështetëse.
- Duke injoruar mbivendosjen: grupe të shumta funksionale mund të kontribuojnë afër të njëjtit numër valor.
- Kalimi i vërtetimit kur aditivët, përzierjet, oksidimi ose ndotja mund të shtrembërojnë spektrin.
Këshillë për verifikim
Kur mbetet paqartësi, verifiko hipotezën me DSC, GC-MS ose TGA, veçanërisht për përzierjet, mostrat e degraduara dhe polimerët e mbushur.
Literatura pas këtyre caktimeve
-
besueshmëri 1,0
“marcescens et produced by is prodigiosin (Srimanthi 1820-1600 The other peak at 3364 (stretching al., 2017) and the bacterial cell has to be broken to get in N-H) represented amine functional group.”
Kusdiyantini 等 - 2019 - Characteristics of a red-pigmented thermotolerant DOI: 10.21161/mjm.190382 -
Hydroxyl (O-H) besueshmëri 1,0
“LLM confirmed rule peak-group candidate”
Cai - 2014 - Synthesis and Structure Optimization of Schiff Bas DOI: 10.14233/ajchem.2014.17137 -
Amine primary besueshmëri 1,0
“2 (spectrum h) shows characteristic bands at 3460.4 and 3363.5 cm-1 (NH2 stretching), 1662.8 cm-1 (C=O cm-1 p-Aminobenzoic acid (spectrum h) shows characteristic bands at 3460.4 and 3363.5 stretching), 1624.3 cm-1 (NH2 in plane deformation)”
Garbacz 和 Wesolowski - 2018 - DSC, FTIR and Raman Spectroscopy Coupled with Mult DOI: 10.3390/molecules23092136 -
Hydroxyl (O-H) besueshmëri 1,0
“explicit assignment in text”
James 等 - 2022 - Synthesis and Characterization of Novel Nano-carbo DOI: 10.15376/biores.17.3.4452-4469 -
N h besueshmëri 1,0
“cm-1 (cid:1)NH the uncoupled vibrations show the usual narrowing and red asym mode, the calculated frequency (3358 2 shift on cooling, which have been found to be characteristic [7]) is almost coincident with the experimental value (3364 cm”
Rozenberg 等 - 2004 - Low temperature FTIR spectroscopy and hydrogen bon DOI: 10.1016/S1386-1425(03)00251-8 -
Hydroxyl (O-H) besueshmëri 1,0
“Furthermore, cm-1 ν(O-H) DP-M had a band of at 3364 that belonged to the OH group from the methanol in the lattice (Fig.”
Somphon 和 Makatan - 2019 - Characterization of donepezil prepared by cogrindi DOI: 10.2306/scienceasia1513-1874.2019.45.028 -
Acetate besueshmëri 1,0
“After being reduced and modified by HNH, the intensities of hydroxyl groups and C-O-C stretching stretching vibration of hydroxyl groups was observed as a broad strong band centered at 3364 cm-1.”
One-Step Reduction and Surface Modification of Graphene Oxide by 3-Hydroxy-2-Naphthoic Acid Hydrazide and Its Polypropylene Nanocomposites DOI: 10.3390/nano7020025 -
Hydroxyl (O-H) besueshmëri 0,9
“Explicit assignment in text”
Cetinkaya 等 - 2020 - D-Glucose-fatty Acid Ester Synthesis with or witho DOI: 10.5650/jos.ess20072
Keni një spektër me këtë brez?
Ngarkoni spektrin tuaj FTIR dhe merrni një raport të plotë interpretimi — caktim i pikut me citime literaturë, përputhje biblioteke dhe një zinxhir provash të vlerësuar me besueshmëri — në sekonda.