What absorbs at 877 cm⁻¹ in an FTIR spectrum?
A band near 877 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
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| Alkyl C-H | 3 | 2 | 1,0 |
| C-O single bond | 2 | 2 | 1,0 |
| Carbonate | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 2 | 1 | 1,0 |
| Methacrylate | 2 | 1 | 1,0 |
| Acetate | 2 | 1 | 1,0 |
| Borate | 1 | 1 | 1,0 |
| Phosphate (PO4) | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 0,9 |
| Ketone | 1 | 0 | 1,0 |
| Ester | 1 | 0 | 1,0 |
| Carboxyl (COOH) | 1 | 0 | 1,0 |
| Amide | 1 | 0 | 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
-
Carbohydrate confiança 1,0
“cm-1 877cm-1 are attributed to β-glycosidic bond.”
Liu 等 - 2006 - A study of the mushrooms of boletes by Fourier tra DOI: 10.1117/12.667136 -
confiança 1,0
“α-Phase are 877”
Abdullah 等 - 2014 - Effect of annealing process on the phase formation DOI: 10.1063/1.4895187 -
Carbonate confiança 1,0
“with the carbonate band at ~877 particles has a cooling The absorption signals further importance to notice that CaSO”
Askar 等 - 2022 - Chemical Composition, Optical Properties and Sourc DOI: 10.3389/fenvs.2022.929449 -
Alkyl C-H confiança 1,0
“A group of bands could be observed at 877 cm-1, 815 cm-1 and 750 cm-1, where the cm-1, cm-1 cm-1, bending vibration of C-H in the aromatic rings was characteristic [30].”
Fabrication of Glass Fiber Reinforced Composites Based on Bio-Oil Phenol Formaldehyde Resin DOI: 10.3390/ma9110886 -
Acetate confiança 1,0
“at corresponding to C-O-C asymmetric stretching frequency also was observed due to interaction of alumina 1132.521060.75 664.13 739.68 877cm-1 3309.68 Absorbance 3114.34 (b)”
El-Naggar - 2013 - Characterization of Modified and Polymer Coated Al DOI: 10.1155/2013/706960 -
C c single bond confiança 1,0
“The band at 1067 would be due to Ccm-1 O stretching vibration and the band at 877 would be related to C-C stretching vibration [19].”
Oliveira 等 - 2016 - FTIR analysis and quantification of phenols and fl DOI: 10.1590/S1517-707620160003.0072 -
confiança 1,0
“The band at 877 could also be caused by vibration stretching CH 1,8-Cineole (Schulz et al.”
Rahmawati 等 - 2020 - Isolation and Identification of Fungi Inhabiting R DOI: 10.1002/bit.260230921 -
Carbonyl (C=O) confiança 1,0
“cm-1 cm-1 ester appears at 1100 and 1305 A strong band at 1724 and a weak broad band at 877 are respectively assigned to the carbonyl and epoxy that obviously indicates a different environment in”
Salehabadi 等 - 2014 - Effect of Organo-Modified Nanoclay on the Thermal DOI: 10.3390/ma7064508
Tem um espectro com esta banda?
Carregue seu espectro FTIR e obtenha um relatório de interpretação completo — atribuições de picos com citações da literatura, correspondências de biblioteca e uma cadeia de evidências com nível de confiança — em segundos.
Interpretar meu espectro