What absorbs at 528 cm⁻¹ in an FTIR spectrum?
A band near 528 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
Ateb cyflym
A band near 528 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.
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Metal oxygen | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Deunyddiau posibl
| Deunydd | Copaon ategol | Grwpiau sy＇n gorgyffwrdd | Ffynonellau a ddyfynnwyd |
|---|---|---|---|
| Fe3O4 | 528, 2358, 1673 | Metal oxygen, Methacrylate, Acetate | 1 |
| iron oxide nanoparticles | 528, 2972, 1628 | Metal oxygen, Methacrylate, Acetate | 1 |
| Co3O4 | 528, 1050, 450 | Metal oxygen, Carboxyl (COOH) | 1 |
Mae deunyddiau＇n cael eu dangos dim ond pan fydd yr un gronfa lenyddiaeth yn cefnogi＇r band hwn ac o leiaf un brig nodweddiadol ychwanegol.
Rhesymeg sbectrwm
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 528 cm⁻¹ is usually not enough for material identification by itself.
Defnydd yn y byd go iawn
Mae＇r math hwn o ymholiad yn gyffredin mewn adnabod polymer, sgrinio plastig anhysbys, datrys problemau QC, dilysu deunydd wedi＇i ailgylchu, ac adolygiad o aseiniad copa wedi＇i gefnogi gan lenyddiaeth.
Camgymeriadau cyffredin
- Trin un band ynysig fel prawf o ddeunydd heb wirio o leiaf un neu ddau gopa cefnogol.
- Anwybyddu gorgyffwrdd: gall grwpiau swyddogaethol lluosog gyfrannu ger yr un rhif ton.
- Hepgor dilysu pan fo ychwanegion, cymysgeddau, ocsideiddio, neu halogiad yn gallu ystumio＇r sbectrwm.
Cyngor dilysu
Pan fo amwysedd yn parhau, dilyswch y rhagdybiaeth gyda DSC, GC-MS, neu TGA, yn enwedig ar gyfer cymysgeddau, samplau dirywiedig, a pholymerau llawn.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
-
Metal oxygen hyder 1.0
“Moreover, the two total follows: intensity of O 1s peak at 528.3 eV for MnFe 2O sample is decreased 4 due to the increase in covalently bonded metal oxygen atoms;”
Attestation in self-propagating combustion approach of spinel AFe2O4 (A=Co, Mg and Mn) complexes bearing mixed oxidation states: Magnetostructural properties DOI: 10.1016/j.apsusc.2016.04.177 -
N h hyder 1.0
“The 528 band is assigned to the strong coupling of the oxide cm-1 lattice in hydrated WO 3•nH 2O material [18].”
Martinez-Juarez 和 Diaz-Reyes - 2008 - A method for deposition of tungsten trioxide (WO3) DOI: 10.1117/12.815958 -
Hydroxyl (O-H) hyder 1.0
“874.1 P-O-P asymmetric stretching bond 792.0 P-O-P asymmetric stretching bond 577.1 (H-O-) P=O bond (strong absorption) acid phosphates 527.7 (H-O-) P=O bond (strong absorption) acid phosphates Table 2 FT-Raman wavenumbers and vibrations as”
Growth and characterization of calcium hydrogen phosphate dihydrate crystals from single diffusion gel technique DOI: 10.1002/crat.200900700 -
Acetate hyder 1.0
“The peaks at ~528.2 eV (observed only in DLC film) and at ~535.8 eV (labeled as a vertical bar) are related to the C=O k* bands, which were argued to indicate the presence of carbon oxide contaminants of carbonyl groups [22].”
Ray 等 - 2005 - Electronic structure and hardening mechanism of Si DOI: 10.1016/j.tsf.2004.11.152 -
Alkene (C=C) hyder 1.0
“The large peak from the NO stretching 1,350cm-1, vibration was observed at and the peak from the C=C stretching mode of the nitrate-bound form of the 1,528cm-1.”
Furutani 等 - 2013 - Development of a rapid Buffer-exchange system for DOI: 10.2142/biophysics.9.123 -
hyder 1.0
“http://pubs.acs.org/journal/acsodf Article cm-1 Ni-O fingerprint indicates bonds in the region for the sample.40,41 NiO nanosheet The absorption bands at 527.7 and”
Gawai 等 - 2022 - Microwave-Assisted Coprecipitation Synthesis and L DOI: 10.1021/acsomega.1c06179 -
Alkyl C-H hyder 1.0
“ous solution and stabilized by a capping agent like proteins secreted by The overall result of FTIR spectra indicated that different organic groups OH, C-H, C=O, C=C and C-O were present which act as a capping agent in iron oxide nanopartic”
Biosynthesized Iron Oxide Nanoparticles (Fe3O4 NPs) Mitigate Arsenic Toxicity in Rice Seedlings DOI: 10.3390/toxics9010002 -
hyder 0.9
“Text lists band at 528 as one of the five bands from sputtering, attributed to Co3O4.”
Cobalt Oxide Catalysts in the Form of Thin Films Prepared by Magnetron Sputtering on Stainless-Steel Meshes: Performance in Ethanol Oxidation DOI: 10.3390/catal9100806
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.