What absorbs at 1206 cm⁻¹ in an FTIR spectrum?
A band near 1206 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
Hurtigt svar
A band near 1206 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.
Mulige funktionelle gruppetildelinger
| Funktionel gruppe | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| Methoxy (OCH3) | 3 | 2 | 1,0 |
| Phosphate (PO4) | 2 | 2 | 1,0 |
| Aromatic ring | 2 | 2 | 1,0 |
| Methacrylate | 2 | 1 | 1,0 |
| C-O single bond | 2 | 1 | 1,0 |
| Acetate | 2 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Phosphorus | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
Rangering afspejler akkumulerede litteraturbeviser, ikke en enkelt autoritativ regel. Bekræft altid mod din prøvekontekst.
Mulige materialer
| Materiale | Understøttende toppe | Overlappende grupper | Citerede kilder |
|---|---|---|---|
| PLGA | 1206, 3200, 1741 | Methacrylate, Methoxy (OCH3) | 1 |
| zirconia | 1206, 1100, 460 | Phosphate (PO4) | 1 |
Materialer vises kun, når den samme litteraturpulje understøtter dette bånd og mindst en yderligere karakteristisk top.
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 1206 cm⁻¹ is usually not enough for material identification by itself.
Anvendelse i virkeligheden
Denne type forespørgsel er almindelig ved polymeridentifikation, screening af ukendt plast, fejlfinding i kvalitetskontrol, verifikation af genanvendt materiale og litteraturunderstøttet gennemgang af peak-tildeling.
Almindelige fejl
- Behandling af et isoleret bånd som bevis på et materiale uden at kontrollere mindst en eller to understøttende toppe.
- Ignorerer overlap: flere funktionelle grupper kan bidrage nær samme bølgetal.
- Spring validering over, når additiver, blandinger, oxidation eller forurening kan forvrænge spektret.
Verifikationsrådgivning
Når tvetydighed fortsat består, valider hypotesen med DSC, GC-MS eller TGA, især for blandinger, nedbrudte prøver og fyldte polymerer.
Litteratur bag disse tildelinger
-
tillid 1,0
“easily distinguish the present peak from the 1206-cm(cid:3)1 1230cm(cid:3)1 The important result here is that the broad absorption band at peak was not due to oxygen”
Second Harmonic Vibrational Mode of Substitutional Carbon in Cast-Grown Multicrystalline Silicon DOI: 10.1143/APEX.4.051401 -
Acetate tillid 1,0
“All the solutions used in NMR C-O stretching 1205.99 1214.82 1396.97 ]C-H experiment were prepared in D 2O solvent.”
Multi-spectroscopic monitoring of molecular interactions between an amino acid-functionalized ionic liquid and potential anti-Alzheimer's drugs DOI: 10.1039/d0ra06323a -
Carbohydrate tillid 1,0
“In turn, in the spectrum of liver, a three 1280cm(cid:3)1, exhibits a specific triplet of bands at 1206, 1238, and bands characteristic for glycogen are observed at 1029, 1078 and however, we do not observe them in the spectra of the homoge”
Rapid approach to analyze biochemical variation in rat organs by ATR FTIR spectroscopy DOI: 10.1016/j.saa.2013.09.131 -
Aromatic ring tillid 1,0
“The spectra for amlodipine besylate drug (Figure 4b) show peaks at 2964.69 for C-CH stretching, at 1698.53, 3 cm(cid:1)1 cm(cid:1)1 cm(cid:1)1 1676.11 for ester C=O stretching, at 1493.92 for aromatic skeletal stretching, at 1205.55 for Sul”
Formulation, optimization, and characterization of amlodipine besylate loaded polymeric nanoparticles DOI: 10.1177/09673911211056154 -
Phosphate (PO4) tillid 1,0
“1250 Amide III (β-sheet, protein) 1235 Antisymmetric phosphate stretching 1206 C-C stretch, C-H bend”
Growth substrate induced functional changes elucidated by FTIR and Raman spectroscopy in in-vitro cultured human keratinocytes. DOI: 10.1007/s00216-006-0876-5 -
Phosphate (PO4) tillid 1,0
“∼430 prominent at and 973 cm-1 for symmetric P-O stretching (ν1), cm-1 for doubly ∼1192 Materials2022,15,2924 7of16 degenerate O-P-O bending (ν2), and 1206 cm-1 for triply degenerate asymmetric P- ∼555 ∼610 O stretching (ν3), and and cm-1 f”
Ponnusamy 等 - 2022 - Synthesis, Structural, and Mechanical Behavior of DOI: 10.3390/ma15082924 -
tillid 0,9
“Text: 'bands at 1735 and 1206 were characteristic of C=O and C-O stretching groups'.”
Bio-plastic (P-3HB-co-3HV) from Bacillus circulans (MTCC 8167) and its biodegradation DOI: 10.1016/j.colsurfb.2011.11.011 -
Aromatic ring tillid 0,9
“Explicit assignment in text.”
Synthesis, Characterization, and Antibacterial Potential of Poly(o-anisidine)/BaSO4 Nanocomposites with Enhanced Electrical Conductivity DOI: 10.3390/pr10091878
Har du et spektrum med dette bånd?
Upload dit FTIR-spektrum og få en fuld tolkningsrapport — peak-tildelinger med litteraturhenvisninger, biblioteksmatch og en tillidsvurderet beviskæde — på få sekunder.