What absorbs at 1618 cm⁻¹ in an FTIR spectrum?
A band near 1618 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
可能性のある官能基アサイン
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| C=n | 3 | 3 | 0.9 |
| Alkene (C=C) | 3 | 3 | 0.9 |
| Hydroxyl (O-H) | 2 | 2 | 0.95 |
| Carbonyl (C=O) | 2 | 2 | 0.9 |
| Amide | 2 | 1 | 0.9 |
| Aromatic ring | 1 | 1 | 0.9 |
| Protein beta sheet | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.8 |
| C c single bond | 1 | 0 | 0.9 |
ランキングは蓄積された文献証拠を反映しており、単一の権威あるルールではありません。常にサンプルのコンテキストと照合して確認してください。
これらのアサインの根拠となる文献
-
Hydroxyl (O-H) 信頼度 0.95
“O-H bending oscillation band at 1618 cm-1”
Klapiszewska 等 - 2019 - Production of cement composites using alumina-lign DOI: 10.5277/ppmp19058 -
Carbonyl (C=O) 信頼度 0.9
“Shift from 1618 to 1635 cm-1 indicates HA coating.”
Shariati 等 - 2023 - Synthesis and characterization of Gd3+-loaded hyal DOI: 10.1038/s41598-023-31252-0 -
信頼度 0.9
“Peak at 1618 cm-1 assigned to cross-β structure.”
Chatani 等 - 2015 - Early aggregation preceding the nucleation of insu DOI: 10.1038/srep15485 -
C=n 信頼度 0.9
“Characteristic of azomethine group.”
Cristovao 等 - 2022 - New Heterotrinuclear Cu(II)Ln(III)Cu(II) (Ln = Ho, DOI: 10.3390/ma15124299 -
Alkene (C=C) 信頼度 0.9
“Explicitly stated in text.”
Jimoh 和 Usman - 2021 - DOI: 10.4152/pea.202102105 -
Alkene (C=C) 信頼度 0.9
“Part of range 1660.71-1618.28 for C=C stretching.”
Kravanja 等 - 2021 - Degradation of Plasticized Poly(1-chloroethylene) DOI: 10.17344/acsi.2020.6464 -
Carbonyl (C=O) 信頼度 0.9
“C=O stretching vibration in β-sheet.”
Li 等 - 2023 - Effect of degumming degree on the structure and te DOI: 10.1038/s41598-023-33844-2 -
信頼度 0.9
“Text: 'DPA absorption peak near 1617.98'”
Liu 等 - 2016 - Study on Growth Regularity of Bacillus Cereus Base DOI: 10.1007/978-3-319-48354-2_3
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