What absorbs at 1759 cm⁻¹ in an FTIR spectrum?
A band near 1759 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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Carbonyl (C=O) | 8 | 7 | 1.0 |
| Ester | 4 | 4 | 1.0 |
| Carboxyl (COOH) | 4 | 4 | 1.0 |
| Methacrylate | 3 | 3 | 1.0 |
| Ketone | 3 | 3 | 1.0 |
| Amide | 3 | 3 | 1.0 |
| Acetate | 3 | 3 | 1.0 |
| Fatty acid | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
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Carbonyl (C=O) 置信度 1.0
“¼ structure, an orthorhombic unit cell is proposed (a 10.31 Å, cm(cid:3)1, For PLLA, an ester carbonyl band appears at around 1759 b¼18.21Åandc¼9.00Å)containingsixchains.ThePLLAcomplex cm(cid:3)1.”
Influence of hydrolytic degradation on the surface properties of poly-5d/95l-lactide resorbable bone plates DOI: 10.1016/j.polymdegradstab.2011.04.020 -
Alkyl C-H 置信度 1.0
“The OMMT, which permits easy absorption of water into the cm21 characteristic peaks at 2997, 2946, and 1877 are for polymer chains and activates the rate of degradation with CAO cm21 are for CH stretching, while 1759 and 1456 fungal growth”
Shimpi 等 - 2014 - Preparation, Characterization, and Biodegradation DOI: 10.1002/pc.22658 -
Ester 置信度 1.0
“1115 cm-1 cm-1 (C=N (symmetric stretching P-O-C), 1034 (collagen), 1528 guanine, adenine, cytosine) and cm-1 (C=O 1759 ester group vibration of triglycerides).”
New approach to investigate Common Variable Immunodeficiency patients using spectrochemical analysis of blood DOI: 10.1038/s41598-019-43196-5 -
Carboxyl (COOH) 置信度 1.0
“FTIR spectra showed the grafting of AA and MAA monomers onto LSH due to the lack of their carboxylic acid carbonyls bands at 1759 and”
Application of Vibrational Spectroscopic Techniques in the Study of the Natural Polysaccharides and Their Cross-Linking Process DOI: 10.3390/ijms24032630 -
Acetate 置信度 1.0
“at position 1759 This band corresponds to the stretching vibrations of the C=O groups originating from”
The sex impact on the technological and chemical characteristics of meat derived from the Polish native chicken breed DOI: 10.1038/s41598-023-33430-6 -
Acetate 置信度 1.0
“C-H stretching (alkyl) 2993 2982 C=O stretching (-COOester group) 1759 1745”
Li 等 - 2020 - The Impact of Reactive Ionic Liquids Addition on t DOI: 10.3390/polym12091958 -
Acetate 置信度 1.0
“A peak at 1759 stems from C=O stretching dominantly governed by the core states in the conjugated π”
Structural, optical, and bioimaging characterization of carbon quantum dots solvothermally synthesized from o-phenylenediamine DOI: 10.3762/bjnano.14.17 -
Carbonyl (C=O) 置信度 1.0
“Furthermore, another characteristic band is the carbonyl of polymers, which is presented for PBAT and PLA at 1710 cm-1 and 1759 cm-1, respectively.”
Poly(butylene adipate-co-terephthalate)/Poly(lactic acid) Polymeric Blends Electrospun with TiO2-R/Fe3O4 for Pollutant Photodegradation DOI: 10.3390/polym15030762
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