What absorbs at 3404 cm⁻¹ in an FTIR spectrum?
A band near 3404 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 3 | 0.9 |
| N h | 2 | 2 | 0.9 |
| Phenolic | 1 | 1 | 1.0 |
| C-O single bond | 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
-
Phenolic 信心 1.0
“Explicit assignment: OH stretching vibration of phenolic group”
Nwosu 和 Amusat - 2021 - DOI: 10.4152/pea.2021390605 -
信心 0.9
“Explicitly assigned.”
Qin 等 - 2020 - Synthesis and properties of soluble polyimides con DOI: 10.1177/0954008320906602 -
Hydroxyl (O-H) 信心 0.9
“Accounts for presence of OH functional group”
Adewuyi 等 - 2011 - Solvent free hydroxylation of the methyl esters of DOI: 10.1186/1752-153X-5-79 -
信心 0.9
“Explicit assignment: 'The band at 3404 cm-1 can be assigned to N-H stretching from primary amine'”
Kacso 等 - 2012 - Structural characterization of ambazone salt with DOI: 10.3233/SPE-2012-0570 -
Hydroxyl (O-H) 信心 0.9
“associated with OH stretching of hydroxyl group on CuO surface”
Keabadile 等 - 2020 - Green and Traditional Synthesis of Copper Oxide Na DOI: 10.3390/nano10122502 -
C-O single bond 信心 0.9
“Text: 'C-O-C are represented by the peaks at 3404'”
Morsy 等 - 2023 - Design and implementation of humidity sensor based DOI: 10.1038/s41598-023-29960-8 -
N h 信心 0.9
“Explicit assignment: 'peak at 3404 cm-1 corresponding to the N-H stretching'.”
Tiwari 等 - 2017 - Manipulating selective dispersion of reduced graph DOI: 10.1039/c7ra02044a -
Hydroxyl (O-H) 信心 0.7
“Peak at 3404 corresponds to -OH or -NH stretching”
Shareef 和 Bhavya - 2021 - Extraction, phytochemical analysis and in silico a DOI: 10.21276/ap.2021.10.2.59
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