What absorbs at 1709 cm⁻¹ in an FTIR spectrum?
A band near 1709 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) | 7 | 6 | 0.9 |
| Ester | 1 | 1 | 0.9 |
| Aromatic ring | 1 | 1 | 0.7 |
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
-
信心 0.95
“Explicit assignment in text.”
Laurans 等 - 2020 - Covalent Grafting of Polyoxometalate Hybrids onto DOI: 10.1038/nature13951. -
Ester 信心 0.9
“Explicit assignment”
Khairuddin 等 - 2016 - FTIR studies on the effect of concentration of pol DOI: 10.1088/1742-6596/776/1/012053 -
Carbonyl (C=O) 信心 0.9
“Absorption peak of carbonyl group at 1709 cm-1.”
Sitorus 等 - 2020 - Characteristics of Maleic Anhydride-Modified Polys DOI: 10.1063/5.0015749 -
Carbonyl (C=O) 信心 0.9
“Explicit assignment: 'peak position at 1709 for hydrogen bonded -C=O'.”
Suryani 和 Zaimahwati - 2014 - Fourrier Transform Infrared and Gel Permeation Chr DOI: 10.4028/www.scientific.net/AMM.525.162 -
信心 0.9
“Explicit assignment: 'at c.1709 due to carbonyls in carboxylic'”
Banou 等 - 2023 - Oil Media on Paper Investigating the Interaction DOI: 10.3390/polym15112567 -
Carbonyl (C=O) 信心 0.9
“stretching vibration of C=O”
Luan 等 - 2018 - Antioxidant Activity and Antifungal Activity of Ch DOI: 10.3390/polym10040395 -
Carbonyl (C=O) 信心 0.9
“C=O stretching mode of the carbonyl group”
Mtavangu 等 - 2022 - In situ facile green synthesis of Ag-ZnO nanocompo DOI: 10.1038/s41598-022-19403-1 -
Carbonyl (C=O) 信心 0.9
“New maximum absorption band at 1709 cm-1 typical of aldehydes and unconjugated carboxylic acids, confirming IA grafted.”
Soto 等 - 2020 - Modified Starch as a Filter Controller in Water-Ba DOI: 10.3390/ma13122794
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