What absorbs at 1850 cm⁻¹ in an FTIR spectrum?
A band near 1850 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
Mga posibleng pagtatalaga ng functional-group
| Functional group | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| C-O single bond | 2 | 1 | 0.9 |
| Carbonyl (C=O) | 2 | 1 | 0.8 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
| Adsorbed carbon monoxide | 1 | 0 | 0.95 |
Ang pagraranggo ay sumasalamin sa naipon na ebidensya ng literatura, hindi isang solong awtoritatibong tuntunin. Palaging kumpirmahin laban sa konteksto ng iyong sample.
Literatura sa likod ng mga pagtatalagang ito
-
Phosphate (PO4) kumpiyansa 0.9
“Bands between 1850 and 2050 cm-1 correspond to overtones of ν(P=O) vibrations.”
Blanco 等 - 2020 - Acidic Properties of Alkaline-Earth Phosphates Det DOI: 10.1021/acs.jpcc.9b10472 -
C-O single bond kumpiyansa 0.9
“Peak assigned to CO”
Hossain 等 - 2012 - High-yield synthesis of PVP-stabilized small Pt cl DOI: 10.1016/j.cattod.2011.10.008 -
kumpiyansa 0.9
“Band at 1850 cm-1 corresponds to asymmetric stretching vibration.”
Ortega-Toro 等 - 2016 - Enhancement of interfacial adhesion between starch DOI: 10.1016/j.carbpol.2016.03.070 -
kumpiyansa 0.7
“Text: 'those at 1850 after ... can be attributed to IH modes in germanium'”
Rochat 等 - 2010 - Germanium and Silicon A Comparative Study of Hydr DOI: 10.1149/1.3329611(cid:4) -
Carbonyl (C=O) kumpiyansa 0.7
“Text: '1,850-1,650cm-1, by oxidation processes' indicates carbonyl region.”
Almond 等 - 2020 - Determination of the carbonyl index of polyethylen DOI: 10.1515/epoly-2020-0041
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