What absorbs at 1647 cm⁻¹ in an FTIR spectrum?
A band near 1647 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 |
|---|---|---|---|
| Carbonyl (C=O) | 8 | 8 | 0.9 |
| Amide | 7 | 5 | 1.0 |
| Alkene (C=C) | 3 | 3 | 0.9 |
| Aromatic ring | 2 | 2 | 0.9 |
| Water (H2O) | 2 | 2 | 0.9 |
| C-O single bond | 2 | 2 | 0.9 |
| Protein | 2 | 2 | 0.8 |
| C=n | 1 | 1 | 0.9 |
| C n single bond | 1 | 1 | 0.9 |
| Lignin | 1 | 1 | 0.8 |
| Protein random coil | 1 | 1 | 0.8 |
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
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信頼度 1.0
“Explicit assignment in text.”
Siriwachirachai 和 Pongjanyakul - 2022 - Particle Agglomeration of Acid-Modified Tapioca St DOI: 10.3390/pharmaceutics14061245 -
Amide 信頼度 0.95
“Explicit assignment: 'amide I band at ... 1647'”
Rashid 等 - 2019 - Excipient Interactions in Glucagon Dry Powder Inha DOI: 10.3390/pharmaceutics11050207 -
Alkene (C=C) 信頼度 0.9
“Text: 'peak at wavelength 1647 (C=C stretching vibration)'”
Khatoon 等 - 2019 - Lignin peroxidase isoenzyme a novel approach to b DOI: 10.1080/09593330.2017.1422550 -
Carbonyl (C=O) 信頼度 0.9
“Attributed to C=O stretching.”
Kumar 等 - 2022 - In-situ Production and Collection of Bacterial Cel DOI: 10.1080/15440478.2020.1870638 -
C-O single bond 信頼度 0.9
“Same assignment as 1567.”
Ahamad - 2022 - CoSe2@N-Doped Graphene Nanocomposite High-Efficien DOI: 10.21203/rs.3.rs-1197256/v1 -
Alkene (C=C) 信頼度 0.9
“Explicitly stated: 'C=C group cm-1 present at ... 1647'”
Alam 等 - 2017 - REMOVAL OF BASIC GREEN 5 BY CARBONACEOUS ADSORBENT DOI: 10.4314/bcse.v31i3.5 -
C=n 信頼度 0.9
“Stretching vibrations of imine (C=N).”
Barczynska-Felusiak 等 - 2021 - Synthesis of the Bacteriostatic Poly(l-Lactide) by DOI: 10.3390/ijms22136950 -
Water (H2O) 信頼度 0.9
“Assigned to δH-O-H.”
Bousalah 等 - 2022 - Enhanced reactivity of the CuO-Fe2O3 intimate hete DOI: 10.21203/rs.3.rs-1276158/v1
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