What absorbs at 3700 cm⁻¹ in an FTIR spectrum?
A band near 3700 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) | 15 | 12 | 1.0 |
| N h | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.8 |
| Amine primary | 1 | 1 | 0.8 |
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 1.0
“Explicit assignment: 'at 3700 which correspond to ... O-H'”
Abu-Jdayil 等 - 2022 - Utilization of Polyurethane Foam Dust in Developme DOI: 10.3390/buildings12020126 -
置信度 0.95
“Text: 'infrared absorption at 3700 is associated with the inner-surface O-H stretching'”
Cheng 等 - 2021 - Kinetics of Dehydroxylation and Decarburization of DOI: 10.3390/ma14061493 -
Hydroxyl (O-H) 置信度 0.9
“Stretching vibration of O-H in clay minerals.”
Ma 等 - 2017 - Soil variability description using Fourier transfo DOI: 10.1016/j.catena.2017.01.005 -
Hydroxyl (O-H) 置信度 0.9
“cm-1 between 3700 and 3000 assigned to asymmetric OH stretching vibration of water and/or silanol groups.”
Balaga 等 - 2023 - Enhanced Cyclopentanone Yield from Furfural Hydrog DOI: 10.3390/catal13030580 -
置信度 0.9
“Peak at 3700 cm-1 associated with OH stretch in brucite.”
Bester 等 - 2019 - Mechanochemical Synthesis of Layered Double Hydrox DOI: 10.1063/1.5084828 -
Hydroxyl (O-H) 置信度 0.9
“Broad OH stretching between 3700 and 3000 cm-1”
Eid 等 - 2022 - Identification of milk quality and adulteration by DOI: 10.1007/s00604-022-05393-4 -
置信度 0.9
“Explicit assignment.”
Hisham 和 Abidin - 2023 - Sedimentology and Paleodepositional Environment of DOI: 10.3390/min13040494 -
Hydroxyl (O-H) 置信度 0.9
“Explicit mention: 'around 3700 cm-1' in OH-stretching region.”
Koch-Mueller 和 Rhede - 2010 - IR absorption coefficients for water in nominally DOI: 10.2138/am.2010.3358
是否有此波段的光谱？
上传您的FTIR光谱，几秒钟内即可获得完整的解读报告——包含带文献引用的峰分配、库匹配和带有置信度评级的证据链。
解读我的光谱