What absorbs at 3650 cm⁻¹ in an FTIR spectrum?
A band near 3650 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) | 9 | 8 | 0.9 |
| Silanol (Si-OH) | 1 | 1 | 0.9 |
| Hydrogen bond | 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
-
Silanol (Si-OH) 置信度 0.9
“Explicit assignment.”
Landheer 等 - 1998 - Fourier transform infrared spectroscopy of corona- DOI: 10.1116/1.589870 -
置信度 0.9
“Text: 'broad peaks spanning from 3000 to 3650cm-1 ... due to O-H/N-H'.”
Mashingaidze 等 - 2013 - Exploration of the biomacromolecular interactions DOI: 10.1002/jbm.a.34664 -
Hydroxyl (O-H) 置信度 0.9
“absorption peak at 3650 which was attributed to phenolic”
Peham 等 - 2023 - Temperature dependent degradation of phenolic stab DOI: 10.1016/j.polymdegradstab.2023.110311 -
置信度 0.9
“Explicit assignment: 'the band at 3650 cm-1 corresponds to kaolinite'”
Bezerra 等 - 2019 - DOI: 10.1590/s1678-86212019000300327 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment in text: 'absorption peak has appeared at 3650 ... due to OH-stretching vibrations'.”
Meghdadi 等 - 2019 - Cold atmospheric plasma as a promising approach fo DOI: 10.1007/s40204-019-0111-z -
Hydroxyl (O-H) 置信度 0.9
“broad bond between 3100 and 3650 attributed to OH stretching vibration”
Nishime 等 - 2012 - Surface characteristics analysis of polypropylene DOI: 10.1088/1742-6596/370/1/012025 -
Hydroxyl (O-H) 置信度 0.9
“Text: 'stretching and bending OH at 3650'”
Spepi 等 - 2016 - Experimental and DFT Characterization of Halloysit DOI: 10.1517/17425247.2016.1169271. -
Hydroxyl (O-H) 置信度 0.9
“Hydroxyl absorption band between 3300-3650 cm-1.”
Yang 等 - 2017 - Combined Effects of Curing Temperatures and Alkali DOI: 10.1155/2017/4262703
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