What absorbs at 1763 cm⁻¹ in an FTIR spectrum?
A band near 1763 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) | 7 | 4 | 1.0 |
| Ester | 5 | 4 | 1.0 |
| Carboxyl (COOH) | 4 | 4 | 1.0 |
| Methacrylate | 4 | 4 | 1.0 |
| Acetate | 4 | 4 | 1.0 |
| Amide | 4 | 4 | 1.0 |
| Ketone | 3 | 3 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| Anhydride | 1 | 0 | 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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Acetate 置信度 1.0
“At cm-1, 1763 there is a very small peak that indicates C=O;”
Reactive Oxygen Species (ROS) Are Generated as Organic Contaminants Are Broken Down: SnO DOI: 10.1007/s12668-023-01111-3 -
Protein 置信度 1.0
“The band at about The The 14,24 14,24 Theband Theband 1640 1640 cm1 cm1 is is a a complex complex band band due due to to the the absorption absorption ofwater ofwater bending bending and and amidelofproteins amidelofproteins at at about ab”
Liu 等 - 2006 - Characterization of the basidiomycetes Thelephora DOI: 10.1117/12.710905 -
Amide 置信度 1.0
“The 1649cm-1 1544cm-1 and the amide II at shifting to disappearance of peaks at 1763 and 1460 of FMN-GA proved β-sheet 1542cm-1 1778cm-1 this attachment.”
Sukprasert 等 - 2020 - Synchrotron FTIR Light Reveals Signal Changes of B DOI: 10.1155/2020/6149713 -
Acetate 置信度 1.0
“characteristic C=O absorption peak at 1763 for the pure PMAPOSS, two strong characteristic Figure 1 displays the FTIR spectra, recorded at room temperature, of pure PAS, pure PMAPOSS, cm-1, absorption peaks appeared at 1734 and 1096 corresp”
Minimizing the Strong Screening Effect of Polyhedral Oligomeric Silsesquioxane Nanoparticles in Hydrogen-Bonded Random Copolymers DOI: 10.3390/polym10030303 -
Acetate 置信度 1.0
“Two main cm-1 minima peaks appeared at 1763 and 1735 (Figure S3), based on the second-derivative spectra from Figure 2a, corresponding to C=O groups free from dipole-dipole interactions”
Du 等 - 2022 - Intraand Intermolecular Hydrogen Bonding in Misc DOI: 10.3390/ijms23137018 -
Acetate 置信度 1.0
“(c) 1069 C-O symmetric stretching vibration in EC 1021 C-O symmetric stretching vibration in DEC ΔR = 2 % ΔR = 5 % Negative peaks C=O 1763 stretching vibration in adsorbed or solvated EC C=O 1716 stretching vibration in adsorbed or solvated”
Matsui 等 - 2015 - In-operando FTIR Spectroscopy for Composite Electr DOI: 10.5796/electrochemistry.83.874 -
Ester 置信度 1.0
“cm-1, cm-1 at 1636 while the peak at 1763 belongs to polymerization and crosslinking of the samples at the remaining esters from DMC.”
Santiago-Medina 等 - 2018 - Polyurethanes from Kraft Lignin without Using Isoc DOI: 10.7569/JRM.2017.634172 -
Carboxyl (COOH) 置信度 1.0
“The FTIR C]O indicated that negatively charged carboxyl groups of the PLGA polymer spectra of the PLGA-CPP conjugates also showed a stretch at 1763cm-1 werestill present onthesurface andthat thesurface density ofTATwas for the carboxyl grou”
Comparison of bulk and microfluidics methods for the formulation of poly-lactic-co-glycolic acid (PLGA) nanoparticles modified with cell-penetrating peptides of different architectures DOI: 10.1016/j.ijpx.2019.100030
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