What absorbs at 1695 cm⁻¹ in an FTIR spectrum?
A band near 1695 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Carbonyl (C=O) | 5 | 5 | 0.95 |
| Amide | 2 | 2 | 1.0 |
| Protein beta sheet | 2 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.9 |
| Urea | 1 | 1 | 0.9 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Amide 信心 1.0
“Explicit assignment in text: 'amide I and amide II regions (1695 and 1548 cm-1)'”
Baldauf 等 - 2007 - Effect of selective growth media on the differenti DOI: 10.1016/j.mimet.2006.06.012 -
Carbonyl (C=O) 信心 0.95
“explicit assignment”
Gorniak 等 - 2022 - Preformulation Studies of Ezetimibe-Simvastatin So DOI: 10.3390/pharmaceutics14050912 -
Carbonyl (C=O) 信心 0.9
“Carbonyl group (C=O) at 1695 cm-1.”
Ashri 等 - 2018 - Modified Dioscorea hispida starch-based hydrogels DOI: 10.1016/j.ijbiomac.2017.10.125 -
Carbonyl (C=O) 信心 0.9
“Peak at 1695 cm-1 assigned to hydrogen-bonded C=O.”
Sheth 等 - 2005 - Time-dependent morphology development in a segment DOI: 10.1021/ma051063a -
信心 0.9
“Explicit assignment in table.”
Wille 等 - 2003 - Redox-triggered FTIR difference spectra of FAD in DOI: 10.1021/bi035219f -
Urea 信心 0.9
“Text: 'urea compound peak maximum at 1695 cmK1'”
Yilgor 等 - 2006 - FTIR investigation of the influence of diisocyanat DOI: 10.1016/j.polymer.2006.02.027 -
信心 0.9
“Explicit: 'bands initially present at 1695 and 1765 characteristic of PMDA C=O stretching'”
Dubois 等 - 2022 - Innovative polypropylene based blends by in situ p DOI: 10.1016/j.polymer.2022.125022 -
Carbonyl (C=O) 信心 0.9
“Explicit assignment in text.”
Lin 等 - 2017 - Coumarinand Carboxyl-Functionalized Supramolecul DOI: 10.3390/polym9040146
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