What absorbs at 573 cm⁻¹ in an FTIR spectrum?
A band near 573 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
Răspuns rapid
A band near 573 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.
Atribuiri posibile ale grupelor funcționale
| Grup funcțional | Fapte suport | Surse citate | Încredere maximă |
|---|---|---|---|
| Metal oxygen | 4 | 4 | 1,0 |
| Aromatic ring | 2 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Hydrogen bond | 1 | 1 | 0,9 |
Clasamentul reflectă dovezile acumulate din literatură, nu o singură regulă autoritară. Confirmați întotdeauna în contextul mostrei dvs.
Materiale posibile
| Material | Vârfuri suport | Grupuri suprapuse | Surse citate |
|---|---|---|---|
| zinc oxide | 573, 1627, 1638 | Metal oxygen | 1 |
| ZnO | 573, 1400, 3430 | Metal oxygen | 1 |
Materialele sunt afișate numai atunci când același grup de literatură susține această bandă și cel puțin un vârf caracteristic suplimentar.
Logica spectrului
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 573 cm⁻¹ is usually not enough for material identification by itself.
Utilizare în condiții reale
Acest tip de interogare este comun în identificarea polimerilor, screeningul materialelor plastice necunoscute, depanarea QC, verificarea materialelor reciclate și revizuirea atribuirii vârfurilor bazată pe literatură.
Greșeli comune
- Tratarea unei benzi izolate ca dovadă a unui material fără a verifica cel puțin unul sau două vârfuri de susținere.
- Ignorând suprapunerea: mai multe grupuri funcționale pot contribui în apropierea aceluiași număr de undă.
- Omiterea validării atunci când aditivii, amestecurile, oxidarea sau contaminarea pot distorsiona spectrul.
Sfat de verificare
Când ambiguitatea rămâne, validați ipoteza prin DSC, GC-MS sau TGA, în special pentru amestecuri, probe degradate și polimeri umpluți.
Literatura din spatele acestor atribuiri
-
Acetate încredere 1,0
“1560cm(cid:1)1 can be ascribed to the The bands at 1405 and C-O symmetric and asymmetric stretching vibrations in the s<573K films T [37].”
Dobrozhan 等 - 2015 - Substructural investigations, Raman, and FTIR spec DOI: 10.1002/pssa.201532324 -
Aromatic ring încredere 1,0
“The primary luminescence peaks are at 22 573 cm-1, and 20 408 respectively, with additional resolved structure from both phenyl ring and ethynyl vibrations.”
Emmert 等 - 2003 - The excited-state symmetry characteristics of plat DOI: 10.1021/jp036309x -
Metal oxygen încredere 1,0
“LLM confirmed rule peak-group candidate”
Fei 等 - 2014 - Effect of Temperature on Structural and Optical Pr DOI: 10.4028/www.scientific.net/KEM.591.293 -
încredere 1,0
“2(a)) absorption bands at 573, 1020, attributed for stretching vibration of tetrahedral group, lepidocrocite formation and nitrogen from unconsumed reagent form”
Synthesis of nanocrystalline nickel⠍zinc ferrite (Ni0.8Zn0.2Fe2O4) thin films by chemical bath deposition method DOI: 10.1016/j.jallcom.2010.12.079 -
Metal oxygen încredere 1,0
“cm-1 cm-1 and 865 confirm that the structural compositional is peaks observed near 573 Nb O symmetric stretching behavior.”
Reddy 等 - 2013 - Electrical and Pyroelectric Measurements on Charge DOI: 10.1080/00150193.2013.821927 -
Metal oxygen încredere 1,0
“The band at 953 is assigned to the W O stretching vibration in the octahedral cm-1 cm-1 tungsten peroxide species in UiO-67-WO(O 2) 2, and the bands centered at 573 and 531 are cm-1 attribute to the asymmetric and symmetric stretching vibra”
Transition Metal Oxodiperoxo Complex Modified Metal-Organic Frameworks as Catalysts for the Selective Oxidation of Cyclohexane DOI: 10.3390/ma13040829 -
Metal oxygen încredere 1,0
“It is obvious that the characteristic band of Fe-O at 572.95 cm 1 absorbance was measured at 570 nm in a microplate reader (Synergy).”
Synthesis and characterization of magnetite nanoparticles by co-precipitation method coated with biocompatible compounds and evaluation of in-vitro cytotoxicity DOI: 10.1016/j.toxrep.2021.01.012 -
Amide încredere 1,0
“8 of 17 cm-1 at 932 and 679 were associated with the stretching and bending vibrations of the C-C connections, the C-C connections, and the group at 573 cm-1 may be attributed to the O=C-N flexion [42].”
Physicochemical Studies on the Surface of Polyamide 6.6 Fabrics Functionalized by DBD Plasmas Operated at Atmospheric and Sub-Atmospheric Pressures DOI: 10.3390/polym12092128
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