What absorbs at 865 cm⁻¹ in an FTIR spectrum?
A band near 865 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 5 cited sources
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| Carbonate | 3 | 3 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
A classificação reflete a evidência acumulada da literatura, não uma única regra autoritária. Sempre confirme com o contexto da sua amostra.
Literatura por trás destas atribuições
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Carbonate confiança 1,0
“It has also been cm-1 reported that the peak at 865 attributed to surface carbonate ions in an amorphous state might reduce its Conclusions intensity or content with maturation of apatites [8].”
Chen 等 - 2006 - Corneal calcification chemical composition of cal DOI: 10.1007/s00417-005-1191-0 -
Carbonate confiança 1,0
“cm-1 The absorption band at 865 is assigned to the vibration modes of the carbonate ion.”
Ionic liquid mediated morphologically improved lanthanum oxide nanoparticles by Andrographis paniculata leaves extract and its biomedical applications DOI: 10.1016/j.jre.2019.06.006 -
Alkyl C-H confiança 1,0
“cm-1 Another peak at 865 was ascribed to out-of-plane C-H distortion modes of the bond.”
Ionic Liquid Functionalized Metal–Organic Framework ([DEIm][PF6]@MOF-5): Synthesis, Characterization, and Catalytic Application in the Reduction of 4-Nitrophenol DOI: 10.1021/acsomega.2c05808 -
Aromatic ring confiança 1,0
“LLM confirmed rule peak-group candidate”
Development of New Amphiphilic Catalytic Steam Additives for Hydrothermal Enhanced Oil Recovery Techniques DOI: 10.3390/catal12080921 -
Carbonate confiança 1,0
“The presence of carbonate ions, due to the solubilization of atmospheric CO in the sol, is also proved by 2 cm-1 the presence of the weak peak at 865 [14,45,46].”
Zirconia/Hydroxyapatite Composites Synthesized Via Sol-Gel: Influence of Hydroxyapatite Content and Heating on Their Biological Properties DOI: 10.3390/ma10070757
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