What absorbs at 3683 cm⁻¹ in an FTIR spectrum?
A band near 3683 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 3 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 | 1.0 |
| Chitosan | 1 | 1 | 1.0 |
| Metal hydroxyl | 1 | 1 | 1.0 |
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
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Metal hydroxyl 置信度 1.0
“These bands conband (surface Ti OH groups) is hard to observe for the cm-1 sist particle of three bands at 3683, 3672 and 3657 on CaHap and with X Ti= 0.15 and 0.20 even though their large X values.”
FTIR studies on photocatalytic activity of Ti(IV)-doped calcium hydroxyapatite particles DOI: 10.1016/j.molcata.2012.04.009 -
Hydroxyl (O-H) 置信度 1.0
“1C) cm-1, clearly mark a peak around 3683 which is due to the overlapping peak of OH of PVA chitosan.30 and NH group of The IR spectra”
Chhatri 等 - 2011 - Designing polysaccharide-based antibacterial bioma DOI: 10.4161/biom.1.2.19005 -
Hydroxyl (O-H) 置信度 0.95
“Text: 'localized OH-stretching fundamental wavenumber of 3683.4 cm-1'”
The donor OH stretching–libration dynamics of hydrogen-bonded methanol dimers in cryogenic matrices DOI: 10.1039/c5cp07387a
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