What absorbs at 883 cm⁻¹ in an FTIR spectrum?
A band near 883 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
Snabbt svar
A band near 883 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.
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| Methoxy (OCH3) | 4 | 4 | 1,0 |
| Methacrylate | 4 | 4 | 1,0 |
| C-O single bond | 4 | 4 | 1,0 |
| Acetate | 4 | 4 | 1,0 |
| Alkyl C-H | 3 | 3 | 1,0 |
| Metal oxygen | 2 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Carbonate | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Phosphorus | 1 | 0 | 1,0 |
| Phosphate (PO4) | 1 | 0 | 1,0 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Möjliga material
| Material | Stödjande toppar | Överlappande grupper | Citerade källor |
|---|---|---|---|
| PVA | 883, 1660, 2930 | Acetate, Methacrylate, C-O single bond | 1 |
| nanocomposite | 883, 2921, 3300 | Methacrylate, Acetate, C-O single bond | 1 |
| lignin | 883, 1035, 1510 | Methacrylate, Acetate, C-O single bond | 1 |
| GO | 883, 1720, 1182 | Methacrylate, Acetate, C-O single bond | 1 |
Material visas endast när samma litteraturpool stöder detta band och minst en ytterligare karakteristisk topp.
Spektrumlogik
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 883 cm⁻¹ is usually not enough for material identification by itself.
Användning i verkligheten
Denna typ av fråga är vanlig inom polymeridentifiering, screening av okänd plast, felsökning av kvalitetskontroll, verifiering av återvunnet material och litteraturstödd toppidentifieringsgranskning.
Vanliga misstag
- Behandla ett isolerat band som bevis på ett material utan att kontrollera minst en eller två stödjande toppar.
- Ignorerar överlapp: flera funktionella grupper kan bidra nära samma vågtal.
- Hoppa över validering när tillsatser, blandningar, oxidation eller föroreningar kan förvränga spektrat.
Verifieringsråd
När oklarhet kvarstår, validera hypotesen med DSC, GC-MS eller TGA, särskilt för blandningar, nedbrutna prover och fyllda polymerer.
Litteratur bakom dessa identifieringar
-
Acetate förtroende 1,0
“This means that increasing the J Mater Sci: Mater Electron cm-1 3-, the absorption peak at 1132 is peak of NO the characteristic peak of C-O bond, and the cm-1 absorption peak at 883 it may be due to the”
Annealing temperature on the microstructure and magnetic properties of magnesium–cobalt ferrite prepared by sol-gel self-propagating method DOI: 10.1007/s10854-020-04778-6 -
förtroende 1,0
“The peak located at 883 could be assigned to cm-1 cm-1 Zn-O bending vibration.”
Al-Qahtani 等 - 2022 - Structural, morphological, optical and electrochem DOI: 10.15251/JOR.2022.182.187 -
förtroende 1,0
“[42] described that deformation of the iron oxide lattice peak at 883 due to the bonding of Fe 3O particles with surface OH groups.”
Study of structural, optical and electrical properties of La3+ doped Mg0.25 Ni0.15 Cu0.25 Co0.35 Fe2-x Lax O4 spinel ferrites DOI: 10.1016/j.physb.2020.412565 -
Alkene (C=C) förtroende 1,0
“With the incorporation of GO with PVA, the FTIR spectra indicated the formation of common properties such as O-H, C=O, C=C, -CH2, C-O stretching, and C-H bending at 3741.18 cm-1, 1774.84 cm-1, 1689.04 cm-1, 1511.76 cm-1, 1182.03 cm-1, and 8”
Evaluation of Structural and Optical Properties of Graphene Oxide-Polyvinyl Alcohol Thin Film and Its Potential for Pesticide Detection Using an Optical Method DOI: 10.3390/photonics9050300 -
Acetate förtroende 1,0
“1027 1022 1026 Stretching C-O of C-O-C carbohydrate and ester Symmetric stretching vibration of C-O-C of 1,4 glycoSymmetric stretching C-O and/or symmetric 883 881 sidic links, characteristic of polysaccharides structure 945”
Flores-Hernandez 等 - 2021 - Synthesis of a Biodegradable Polymer of Poly (Sodi DOI: 10.3390/polym13040504 -
förtroende 1,0
“The appearance of the absorption peak at 883 is Si-O-C FR005TN A50 tensile tester using dumbbell-shaped specimens ascribed to the vibration absorption of the bond, mm·min-1 with a crosshead speed of 500 with reference to the indicating that”
Li 等 - 2023 - Triple Silicon, Phosphorous, and Nitrogen-Grafted DOI: 10.1021/acsomega.3c00714 -
Acetate förtroende 1,0
“View the reduction of the band ''C-O-C'' (883 n (p=0.174) of the LCUs on the KHN (Table 6).”
Torres 等 - 2014 - Degree of conversion and hardness of a silorane-ba DOI: 10.2341/12-479 -
Carbonate förtroende 1,0
“and calcite (CaCO3) with characteristic IR absorbance bands at 1433 cm-1, 883 cm-1.”
Application of Advanced Analytical Techniques in Organic Cultural Heritage: A Case Study of Ancient Architecture Relics in the Palace Museum (Beijing) DOI: 10.3390/coatings12050636
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