What absorbs at 1439 cm⁻¹ in an FTIR spectrum?
A band near 1439 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 5 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 |
|---|---|---|---|
| Carboxyl (COOH) | 2 | 2 | 0.9 |
| Aromatic ring | 1 | 1 | 0.8 |
| Carbonyl (C=O) | 1 | 1 | 0.7 |
| Ammonium | 1 | 0 | 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
-
Carboxyl (COOH) 信心 0.9
“COO- band at 1381 cm-1 or 1439 cm-1”
Eisenhauer 等 - 2012 - In Channelrhodopsin-2 Glu-90 Is Crucial for Ion Se DOI: 10.1002/anie.201107509 -
信心 0.9
“Text attributes peak at 1438.90 to bending vibration of O-Ca-O group.”
Mardiana 等 - 2017 - Ultrasound-Assisted Synthesis of Curcumin Analogs DOI: 10.1063/1.4991200 -
Carboxyl (COOH) 信心 0.9
“assigned to O-H stretching of -COOH in rGO”
Morsy 等 - 2022 - Preparation, investigation, and temperature sensin DOI: 10.1007/s10854-022-09247-w -
Aromatic ring 信心 0.8
“Phenyl ring related PPA absorption.”
Tassi 等 - 2017 - A detailed investigation of the microwave assisted DOI: 10.1016/j.apt.2016.09.020 -
Carbonyl (C=O) 信心 0.7
“C=O bond in carboxylic acid group”
Chen 等 - 2020 - Inhibition of Poly(ethylenediaminetetraacetic acid DOI: 10.3390/cryst10060544
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