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
Resposta rápida
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.
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| 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 |
A classificação reflete a evidência acumulada da literatura, não uma única regra autoritária. Sempre confirme com o contexto da sua amostra.
Materiais possíveis
| Material | Picos de suporte | Grupos sobrepostos | Fontes citadas |
|---|---|---|---|
| zinc oxide | 573, 1627, 1638 | Metal oxygen | 1 |
| ZnO | 573, 1400, 3430 | Metal oxygen | 1 |
Os materiais são mostrados apenas quando o mesmo conjunto de literatura suporta esta banda e pelo menos um pico característico adicional.
Lógica do espectro
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.
Uso no mundo real
Este tipo de consulta é comum em identificação de polímeros, triagem de plásticos desconhecidos, solução de problemas de CQ, verificação de materiais reciclados e revisão de atribuição de picos apoiada pela literatura.
Erros comuns
- Tratar uma banda isolada como prova de um material sem verificar pelo menos um ou dois picos de suporte.
- Ignorando sobreposição: vários grupos funcionais podem contribuir próximo ao mesmo número de onda.
- Ignorar a validação quando aditivos, misturas, oxidação ou contaminação podem distorcer o espectro.
Conselho de verificação
Quando a ambiguidade persistir, valide a hipótese com DSC, GC-MS ou TGA, especialmente para misturas, amostras degradadas e polímeros carregados.
Literatura por trás destas atribuições
-
Acetate confiança 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 confiança 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 confiança 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 -
confiança 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 confiança 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 confiança 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 confiança 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 confiança 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
Tem um espectro com esta banda?
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