What absorbs at 3638 cm⁻¹ in an FTIR spectrum?
A band near 3638 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 6 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) | 4 | 4 | 1.0 |
| Alkyl C-H | 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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Hydroxyl (O-H) 置信度 1.0
“TGA2950.Theheatingratewas20◦C/minundernitrogencondition 3638cm-1 The sharp strong vibration band at is due to OH with an initial sample weight of 11-15mg.”
Li 等 - 2008 - An FTIR investigation of hexadecyltrimethylammoniu DOI: 10.1016/j.saa.2008.05.015 -
Hydroxyl (O-H) 置信度 1.0
“Addition of the first doses of CO to all the three studied samples in the cell, preliminary cooled with liquid nitrogen (Figure 3), results in the intensity decrease of the OH band at 3638 with cm-1 12CO simultaneous growth of the band of p”
Belykh 等 - 2019 - Deep insight into CO adsorption on Ni-USY zeolite DOI: 10.1016/j.apcata.2019.117140 -
Hydroxyl (O-H) 置信度 1.0
“The primary OH band of 3638cm-1, them where the baseline was free of absorption bands, using MCT muscovite at measured in polarized IR rawww.solid-earth.net/8/1025/2017/ Solid Earth, 8, 1025-1045, 2017”
Kronenberg 等 - 2017 - Synchrotron FTIR imaging of OH in quartz mylonites DOI: 10.5194/se-8-1025-2017 -
Hydroxyl (O-H) 置信度 1.0
“In h o cm-1 the B550 biochar spectrum, two distinct bands at 3638 and 3055 were observed.”
Singh 等 - 2016 - A Fourier-Transform Infrared Study of Biochar Agin DOI: 10.2136/sssaj2015.11.0414. -
置信度 0.8
“Text: 'peaks appear due to magnesium oxide high zone, a more acute peak appears at 3638cm-1'”
Jo 等 - 2017 - Strength and Durability Assessment of Portland Cem DOI: 10.1155/2017/2526130 -
置信度 0.8
“Text assigns bands at 3674, 3638, 3620, 3607 cm-1 to water OH stretches.”
Marechal 和 Rich - 2011 - Water molecule reorganization in cytochrome c oxid DOI: 10.1073/pnas.1019419108/-/DCSupplemental.
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