What absorbs at 3230 cm⁻¹ in an FTIR spectrum?
A band near 3230 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) | 3 | 2 | 0.9 |
| Water (H2O) | 2 | 2 | 1.0 |
| N h | 1 | 1 | 0.95 |
| Amide | 1 | 1 | 0.95 |
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
-
Water (H2O) 置信度 1.0
“Explicit: 'a shoulder at about 3230 cm-1'.”
Ashraf 等 - 2021 - Identification and properties of ion-pairs in the DOI: 10.1016/j.molliq.2020.114891 -
Amide 置信度 0.95
“Explicit assignment: 'Amide A peak at 3230 cm-1 absorption bands for N-H bond'”
Verdnik 等 - 2021 - Isolation of Keratin from Waste Wool Using Hydroth DOI: 10.17344/acsi.2020.6538 -
Water (H2O) 置信度 0.9
“Strong relative absorption at 3230 indicates water inside relaxed myofibril.”
Yoo 等 - 2014 - Contraction-Induced Changes in Hydrogen Bonding of DOI: 10.1021/jz5000879 -
置信度 0.9
“Gaussian component of OH-stretch band”
da Silva 等 - 2021 - Effects of different solutes on the physical chemi DOI: 10.1016/j.molliq.2021.116288 -
Hydroxyl (O-H) 置信度 0.9
“Water O-H stretching band”
Galvez 等 - 2008 - Trapping and adsorption of CO2 in amorphous ice A DOI: 10.1016/j.icarus.2008.05.016 -
置信度 0.9
“Text: 'low-intensity broad cm-1 peak at the 3230 band corresponds to the elongation of -OH groups found in D-glucose units'”
Macedo 等 - 2023 - Development and Characterization of Yellow Passion DOI: 10.3390/metabo13060684 -
Hydroxyl (O-H) 置信度 0.9
“characteristic peaks are O-H at 3230”
Tan 等 - 2023 - Flame retardant properties and mechanism of PLAP- DOI: 10.3389/fchem.2023.1096526 -
置信度 0.7
“Medium band in X-H region.”
Saplinova 等 - 2009 - 2,5,8-Trihydrazino-s-heptazine A Precursor for He DOI: 10.1002/zaac.200900311
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