What absorbs at 3260 cm⁻¹ in an FTIR spectrum?
A band near 3260 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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 5 | 0.9 |
| N h | 3 | 3 | 0.8 |
| Carbohydrate | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.9 |
| Amide | 1 | 0 | 0.9 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Hydroxyl (O-H) 置信度 0.9
“Broad band at 3260 cm-1 assigned to O-H stretching vibration.”
Castiglioni 等 - 2019 - Morphological, Physicochemical and FTIR Spectrosco DOI: 10.3390/molecules24213974 -
Carboxyl (COOH) 置信度 0.9
“Explicit assignment: 'broad band at 3260 is assigned to O-H stretching in the COOH group'”
Deyab 等 - 2022 - Theoretical, chemical, and electrochemical studies DOI: 10.1038/s41598-022-06215-6 -
Hydroxyl (O-H) 置信度 0.9
“Text: 'characteristics peak of the Hydrochlorothiazide ... observed at hydroxyl group (OH stretch-)' and '3260.11cm-1'”
Giri 等 - 2019 - Hydrochlorothiazide Nanocrystals Stabilization by DOI: 10.5530/ijper.53.3.81 -
Carbohydrate 置信度 0.9
“Text states 'Peaks at 3636.01 and 3259.55 are due to polysaccharides'.”
Noureen 等 - 2022 - Prunus armeniaca Gum-Alginate Polymeric Microspher DOI: 10.3390/pharmaceutics14050916 -
Hydroxyl (O-H) 置信度 0.9
“Sharp band at 3260 cm-1 represents -OH stretching.”
Palayangoda 和 Nguyen - 2015 - THERMAL BEHAVIOR OF RAW OIL SHALE AND ITS COMPONEN DOI: 10.3176/oil.2015.2.06 -
N h 置信度 0.8
“stretching vibration bond”
Khashan 和 Abbas - 2016 - Characterization of InN nanoparticles prepared by DOI: 10.1142/S0217979216500806 -
Hydroxyl (O-H) 置信度 0.8
“Text: 'cm-1 cm-1 (O-H N-H), showed the peak at 3260'”
Hu 等 - 2019 - Mycosynthesis, characterization, anticancer and an DOI: 10.2147/IJN.S200817 -
Hydroxyl (O-H) 置信度 0.7
“Major stretching frequency observed at 3260 cm-1, typically O-H.”
Ansari 等 - 2022 - Green Synthesis of TiO2 Nanoparticles Using Acorus DOI: 10.3390/catal12020181
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