What absorbs at 1734 cm⁻¹ in an FTIR spectrum?
A band near 1734 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
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| Carbonyl (C=O) | 13 | 11 | 1,0 |
| Ester | 3 | 3 | 0,9 |
| C-O single bond | 2 | 2 | 0,9 |
| Carboxyl (COOH) | 2 | 2 | 0,9 |
| Carbohydrate | 1 | 1 | 0,9 |
| Acetyl | 1 | 1 | 0,9 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Litteratur bakom dessa identifieringar
-
Carbonyl (C=O) förtroende 1,0
“Explicit assignment in text: 'reduced C=O and C=C peaks at 1734 cm-1 and 1536 cm-1'”
Shunmugam 等 - 2021 - TAGUCHI ORTHOGONAL DESIGN FOR OPTIMIZING A UNIFIED DOI: 10.11113/jurnalteknologi.v83.15109 -
Carbonyl (C=O) förtroende 1,0
“Explicitly assigned to C=O.”
Chaparro 等 - 2023 - Biowaxes from Palm Oil as Promising Candidates for DOI: 10.3390/ma16124402 -
Carbonyl (C=O) förtroende 1,0
“Explicit assignment: '카보닐기(C=O)에 기인하는 흡수띠(1734cm-1)'”
XIAO-YONG 等 - 2015 - Self Healing System for Concrete Surface Crack usi DOI: 10.5345/JKIBC.2015.15.6.579 -
Carboxyl (COOH) förtroende 0,9
“C=O band of carboxylic acid”
Benkaddour 等 - 2013 - Grafting of Polycaprolactone on Oxidized Nanocellu DOI: 10.3390/nano3010141 -
Carbonyl (C=O) förtroende 0,9
“Signal at 1734 cm-1 attributable to stretching vibration of carbonyl residue of acetyl group, typical of ester function.”
Bertoli 等 - 2022 - Complexing the Marine Sesquiterpene Euplotin C by DOI: 10.3390/md20110682 -
Carbonyl (C=O) förtroende 0,9
“assigned to C=O and hemicellulose”
Dos Anjos 等 - 2021 - Combined Treatment (Alkali + Thermal) of Calotropi DOI: 10.3390/polym13193285 -
Carbonyl (C=O) förtroende 0,9
“Text: 'carboxylic acid stretching peak of SA at 1734 cm-1 C=O'”
Jeong 等 - 2019 - Gelatin-Alginate Complexes for EGF Encapsulation DOI: 10.3390/pharmaceutics11100530 -
förtroende 0,9
“Peak at 1734 cm-1 corresponds to carbonyl stretch from E.”
Lopes 等 - 2020 - Spectral profiles of commercial omega-3 supplement DOI: 10.1007/s13197-019-04157-y
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