What absorbs at 1067 cm⁻¹ in an FTIR spectrum?
A band near 1067 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
Schnelle Antwort
A band near 1067 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.
Mögliche Funktionsgruppenzuweisungen
| Funktionelle Gruppe | Unterstützende Fakten | Zitierte Quellen | Höchstes Vertrauen |
|---|---|---|---|
| Methacrylate | 14 | 13 | 1,0 |
| Acetate | 14 | 13 | 1,0 |
| Methoxy (OCH3) | 13 | 12 | 1,0 |
| C-O single bond | 13 | 12 | 1,0 |
| Alkyl C-H | 5 | 5 | 1,0 |
| Silicon-oxygen (Si-O) | 5 | 5 | 1,0 |
| Amide | 5 | 5 | 1,0 |
| Silicon (Si) | 3 | 3 | 1,0 |
| Secondary amine | 3 | 3 | 1,0 |
| N h | 3 | 3 | 1,0 |
| Phosphate (PO4) | 3 | 2 | 1,0 |
| C n single bond | 2 | 2 | 1,0 |
| Ketone | 2 | 2 | 1,0 |
| Ester | 2 | 2 | 1,0 |
| Carboxyl (COOH) | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 1,0 |
| Metal oxygen | 2 | 1 | 1,0 |
| Phosphorus | 2 | 1 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1,0 |
| Chlorine | 1 | 1 | 1,0 |
| Urethane | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Bromine | 1 | 1 | 1,0 |
| Carbon bromine | 1 | 1 | 1,0 |
| Amine primary | 1 | 1 | 1,0 |
| Silanol (Si-OH) | 1 | 1 | 1,0 |
| Fluorine (C-F) | 1 | 1 | 0,9 |
Das Ranking spiegelt die gesammelte Literatur Evidenz wider, nicht eine einzelne maßgebliche Regel. Bestätigen Sie immer anhand Ihres Probenkontexts.
Mögliche Materialien
| Material | Unterstützende Peaks | Überlappende Gruppen | Zitierte Quellen |
|---|---|---|---|
| graphene oxide | 1067, 1150, 3400 | Methacrylate, Acetate, C-O single bond | 1 |
| graphene | 1067, 1720, 2097 | Methacrylate, Acetate, C-O single bond | 1 |
Materialien werden nur angezeigt, wenn derselbe Literaturpool diese Bande und mindestens einen weiteren charakteristischen Peak unterstützt.
Spektrumslogik
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 1067 cm⁻¹ is usually not enough for material identification by itself.
Praktische Anwendung
Diese Art von Abfrage ist üblich bei der Polymeridentifikation, dem Screening unbekannter Kunststoffe, der Fehlersuche in der Qualitätskontrolle, der Verifizierung von Recyclingmaterial und der literaturgestützten Überprüfung der Peakzuordnung.
Häufige Fehler
- Behandlung einer isolierten Bande als Beweis für ein Material, ohne mindestens einen oder zwei unterstützende Peaks zu überprüfen.
- Überlappung ignorieren: Mehrere funktionelle Gruppen können nahe der gleichen Wellenzahl beitragen.
- Überspringen der Validierung, wenn Additive, Mischungen, Oxidation oder Verunreinigungen das Spektrum verfälschen können.
Beratung zur Verifizierung
Wenn weiterhin Mehrdeutigkeit besteht, validieren Sie die Hypothese mit DSC, GC-MS oder TGA, insbesondere bei Mischungen, degradierten Proben und gefüllten Polymeren.
Literatur hinter diesen Zuweisungen
-
Alkyl C-H Vertrauen 1,0
“The band at 1067 shows symmetric stretching of cm-1 cm-1 CH-O-CH [35].”
Structural analysis and antioxidative properties of mutan (water-insoluble glucan) and carboxymethyl mutan from Streptococcus mutans DOI: 10.1016/j.procbio.2020.07.006 -
Amide Vertrauen 1,0
“The peak at 1082 for functionalized The peak at 1590 cm-1 of functionalized GO is probably due to the N-H bend, while the same cm-1 GO is probably due to the shift of the C-N stretch at 1067 in the parent amine, ODA.”
Daud 等 - 2017 - Functionalizing Graphene Oxide with Alkylamine by DOI: 10.3390/nano7060135 -
Silanol (Si-OH) Vertrauen 1,0
“The absorption band at 1067 is cm-1 Si-OH due to stretching modes of Si-O bond and the band at 998 is related to stretching.”
Dhanu 等 - 2020 - Photoluminescence of mixed phase CaSiO3Ce3+ nanop DOI: 10.1016/j.ijleo.2020.165139 -
Vertrauen 1,0
“functional group of symmetrical stretching of The Finally, the progression of the reaction was examined by the amine groups are assigned due to the N-H bending of 1066.64cm-1 alteration of the absorption intensity of the dye color using a p”
Rajeshkumar 等 - 2022 - Degradation of Toxic Dye and Antimicrobial and Fre DOI: 10.1155/2022/4513208 -
Carbon bromine Vertrauen 1,0
“cm21 C-Br vibration at 1067 confirms that OPS have been”
Wang 等 - 2012 - Controlled network structure and its correlations DOI: 10.1039/c2ra00021k -
Acetate Vertrauen 1,0
“C-C asymmetry deformation (aromatic ring) 1307 1304 C-O (sp2) stretching 1067 1249”
Yusoff 等 - 2018 - Theoretical and Experimental Approach Towards P-Cy DOI: 10.1088/1757-899X/374/1/012086 -
C c single bond Vertrauen 1,0
“sand 21.7%), SSA (26.8 for the symmetric stretching 1234 organic matter content for the stretching of (14.7gkg-1)andcationexchangecapacity(10.0cmolkg-1),wereob2of\\COOH/ PO in phosphodiesters and phosphates, or vibrations C\\O\\Cinesters;10”
Contrasting effects of extracellular polymeric substances on the surface characteristics of bacterial pathogens and cell attachment to soil particles DOI: 10.1016/j.chemgeo.2015.06.013 -
Acetate Vertrauen 1,0
“1067cm-1 stretching at corresponds to C-O (epoxy group).”
Abdelhalim 等 - 2016 - Graphene Functionalization by 1,6-Diaminohexane an DOI: 10.1155/2016/1485280
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