What absorbs at 3674 cm⁻¹ in an FTIR spectrum?
A band near 3674 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 4 cited sources
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 4 | 1.0 |
| Metal hydroxyl | 1 | 0 | 1.0 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
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Hydroxyl (O-H) 信心 1.0
“According to the FTIR spectra, GO shows the structure can be simplistically assumed in the form of O-H stretching at 3673.81 cm-1, C=O carboxyl stretching at 1750.02 cm-1,”
Evaluation of Structural and Optical Properties of Graphene Oxide-Polyvinyl Alcohol Thin Film and Its Potential for Pesticide Detection Using an Optical Method DOI: 10.3390/photonics9050300 -
Hydroxyl (O-H) 信心 1.0
“Magnesium oxide and hydroxide are form in solution, NaAl(OH)4) is denoted by the bands at 3844 cm-1 (Al-OH stretching) cm-1 evidenced by the bands at 3674 (OH stretching in Mg-OH or Mg-O) [29,30,32,33], [25,29,30] and 612 (Al-O stretching)”
Saharan Dust Storm Aerosol Characterization of the Event (9 to 13 May 2020) over European AERONET Sites DOI: 10.3390/atmos13030493 -
Hydroxyl (O-H) 信心 1.0
“3 cm1 absorption band at 3674 is assigned to free OH [41], which is likely present because of leakflows, as discussed hereafter.”
Interaction of (3-Aminopropyl)triethoxysilane With Late Ar-N 2 Afterglow: Application to Nanoparticles Synthesis DOI: 10.1002/ppap.201500201 -
Hydroxyl (O-H) 信心 1.0
“3638cm-1 withsmallerOHbandsat3311,3146,and3035cm-1.(d)TheprimaryOHbandofalargebiotitegraininthesameMCTsample appearsat3614cm-1 (withshouldersat3674and3561cm-1)andsecondaryOHbandsat3258,3043,and2829cm-1.Thecomplexnature of secondary OH bands”
Kronenberg 等 - 2017 - Synchrotron FTIR imaging of OH in quartz mylonites DOI: 10.5194/se-8-1025-2017
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