What absorbs at 3425 cm⁻¹ in an FTIR spectrum?
A band near 3425 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) | 20 | 19 | 1.0 |
| N h | 3 | 3 | 0.9 |
| Amide | 1 | 1 | 0.95 |
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
-
Hydroxyl (O-H) 信心 1.0
“Text: 'hydroxyl band has shifted to 3425 cm-1' and later 'shifted from 3425 to 3354 cm-1'”
Shukur 等 - 2013 - Proton conducting polymer electrolyte based on pla DOI: 10.1016/j.optmat.2013.03.004 -
Hydroxyl (O-H) 信心 1.0
“Explicit assignment: 'vibration characteristics of hydroxyl group' at 3425 cm-1.”
Tarmizi 等 - 2019 - Identification of chemical structure of anthocyani DOI: 10.1088/1757-899X/578/1/012013 -
Hydroxyl (O-H) 信心 1.0
“Explicit assignment: '-OH (3425 cm-1)'.”
Nardeli 等 - 2019 - Preparation of Polyurethane Monolithic Resins and DOI: 10.3390/polym11111890 -
信心 0.95
“Text: '3425cm-1 (carboxyl) bond' and 'assigned to the stretching of O-H carboxylic groups'”
Abdelhalim 等 - 2016 - Graphene Functionalization by 1,6-Diaminohexane an DOI: 10.1155/2016/1485280 -
Amide 信心 0.95
“Explicit assignment in text: 'the sharp peaks at 3425.4 were indicative of the N H stretching of amides'”
Majeed 等 - 2016 - In vitro study of the antibacterial and anticancer DOI: 10.1016/j.jtusci.2016.02.010 -
Hydroxyl (O-H) 信心 0.9
“Text: 'peaks around 3425 ... assigned to O-H'”
Bhajantri 等 - 2006 - Microstructural studies on BaCl2 doped poly(vinyl DOI: 10.1016/j.polymer.2006.03.054 -
Hydroxyl (O-H) 信心 0.9
“Text states 'peak at 3425 belonging to the hydroxyl group'.”
Hirzin 等 - 2018 - Preparation of One-shot and Two-shot Method of Sem DOI: 10.1063/1.5047200 -
Hydroxyl (O-H) 信心 0.9
“Text: 'cm-1 at 3425 demonstrated the presence of hydroxyl and amino groups.'”
Abd El-Salam 等 - 2017 - Isolation, characterization, optimization, immobil DOI: 10.1016/j.jgeb.2017.07.002
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