What absorbs at 1623 cm⁻¹ in an FTIR spectrum?
A band near 1623 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
Penetapan kumpulan berfungsi yang mungkin
| Kumpulan berfungsi | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| Protein beta sheet | 3 | 2 | 0.9 |
| Amide | 2 | 2 | 0.9 |
| Carbonyl (C=O) | 2 | 1 | 0.9 |
| Aromatic ring | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.9 |
| C n single bond | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.8 |
| Water (H2O) | 1 | 1 | 0.8 |
| Alkene (C=C) | 1 | 1 | 0.8 |
| C=n | 1 | 0 | 1.0 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Literatur di sebalik penetapan ini
-
Aromatic ring keyakinan 1.0
“Explicit assignment in text.”
Olanipekun 等 - 2014 - Adsorption of lead over graphite oxide DOI: 10.1016/j.saa. -
Carbonyl (C=O) keyakinan 0.9
“Peak at 1623 cm-1 assigned to carbonyl group.”
Kumar 和 Roy - 2018 - Population authentication of the traditional medic DOI: 10.1038/s41598-018-29114-1 -
Amide keyakinan 0.9
“Explicit assignment: 'strong and sharp peak at 1623 cm-1' for amide I.”
Callone 等 - 2016 - Processing Influence on Molecular Assembling and S DOI: 10.1021/acsbiomaterials.5b00507 -
Protein beta sheet keyakinan 0.9
“Text: 'peaks at 1623 to 1629 are certainly ... beta-sheet associated'.”
Krysmann 等 - 2008 - The effect of PEG crystallization on the morpholog DOI: 10.1002/macp.200700605 -
C n single bond keyakinan 0.9
“Text: 'Peaks at 1623 ... to C-N stretching of the aromatic amino group and C-O- stretching alcohols, ethers'”
Kumari 等 - 2019 - Effect of copper nanoparticles on physico-chemical DOI: 10.1007/s13205-019-1624-9 -
keyakinan 0.9
“Stretching bands attributed to LDH interlayer”
Li 等 - 2018 - Aging-Resistant Functionalized LDH-SASNitrile-But DOI: 10.3390/ma11050836 -
Amide keyakinan 0.9
“Attributed to N-H bending.”
Shah 等 - 2021 - Efficient removal of 2-chlorophenol from aqueous s DOI: 10.1007/s13201-021-01372-x -
keyakinan 0.9
“Explicit assignment in text: 'C＝O双键的伸缩振 cm-1)和不对称伸缩振动峰强度(1623 cm-1)'”
Zhao Feng-Qi 等 - 2013 - Preparation, Characterization and Combustion Catal DOI: 10.3866/PKU.WHXB20130111
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