What absorbs at 1730 cm⁻¹ in an FTIR spectrum?
A band near 1730 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
Mulige funksjonelle gruppe-tilordninger
| Funksjonell gruppe | Støttende fakta | Siterte kilder | Toppkonfidens |
|---|---|---|---|
| Carbonyl (C=O) | 53 | 50 | 1.0 |
| Ester | 13 | 11 | 1.0 |
| Carbohydrate | 5 | 4 | 0.9 |
| Carboxyl (COOH) | 3 | 3 | 0.9 |
| C-O single bond | 3 | 3 | 0.9 |
| Alkyl C-H | 2 | 2 | 0.9 |
| Acetyl | 2 | 2 | 0.9 |
| Amide | 2 | 1 | 0.9 |
| Hydroxyl (O-H) | 2 | 1 | 0.8 |
| C n single bond | 1 | 1 | 0.8 |
| Nitrogen heterocycle | 1 | 1 | 0.2 |
| Acetate | 1 | 0 | 0.9 |
| Lignin | 1 | 0 | 0.6 |
Rangeringen gjenspeiler akkumulert litteraturbevis, ikke en enkelt autoritativ regel. Bekreft alltid mot prøvekonteksten din.
Litteratur bak disse tilordningene
-
Ester konfidens 1.0
“Ester absorption band at ~1730 cm-1 from ν(C=O) ester.”
Ali 等 - 2018 - Application of FTIR and LA-ICPMS Spectroscopies as DOI: 10.3390/app8122436 -
Carbonyl (C=O) konfidens 1.0
“axial deformation of C=O”
Braga 等 - 2015 - The energetic characterization of pineapple crown DOI: 10.1007/s11356-015-5082-6 -
Carbonyl (C=O) konfidens 1.0
“Explicit assignment in text”
Gregorio 等 - 2017 - Analysis of human bodily fluids on superabsorbent DOI: 10.1016/j.talanta.2016.10.061 -
Carbonyl (C=O) konfidens 1.0
“Explicit assignment: 'C=O (1730 cm-1)'.”
Liang 等 - 2018 - Degradation of Polyacrylate in the Outdoor Agricul DOI: 10.3390/polym10121296 -
Carbonyl (C=O) konfidens 1.0
“C=O stretching band for carboxyl group of PAA”
Maeda 等 - 2012 - Structural analysis of microbial poly(epsilon-L-ly DOI: 10.1038/pj.2011.108; -
Carbonyl (C=O) konfidens 0.95
“Explicit assignment in text.”
Lando 等 - 2017 - UV-Surface Treatment of Fungal Resistant Polyether DOI: 10.3390/ijms18071536 -
Carbonyl (C=O) konfidens 0.95
“Explicit: 'absorption bands at 1730 cm-1 (C=O stretching vibration)'”
Malinsky 等 - 2017 - Graphene oxide layers modified by light energetic DOI: 10.1039/c6cp08937b -
Carbonyl (C=O) konfidens 0.95
“Text states 'C=O stretching band at 1730 cm-1'.”
Paucean 等 - 2017 - MONITORING LACTIC ACID CONCENTRATIONS BY INFRARED DOI: 10.1556/066.2017.0003
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