What absorbs at 3487 cm⁻¹ in an FTIR spectrum?
A band near 3487 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 5 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 |
| Carbonyl (C=O) | 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
“2.c) the bands exist at 3487.30 and 1651.07 which are assigned to the O-H cm-1 stretching and bending vibrations.”
Deswardani 等 - 2017 - Study of Structural and Magnetic Properties of Sil DOI: 10.1088/1757-899X/202/1/012047 -
Hydroxyl (O-H) 置信度 1.0
“Intense prominent peaks observed at 3487, 3502, 3509, 3521 and Silicate 3547cm(cid:3)1areassigned totheOHstretching vibrationoftheSiO 3(OH)units.Theobservation of multiple”
Frost 等 - 2015 - Vibrational spectroscopic study of poldervaartite DOI: 10.1016/j.saa.2014.09.017 -
Hydroxyl (O-H) 置信度 1.0
“LLM confirmed rule peak-group candidate”
Rupiasih 等 - 2018 - Study on Transport Properties of Chitosan Membrane DOI: 10.5614/j.math.fund.sci.2018.50.2.6 -
Carbonyl (C=O) 置信度 1.0
“The larger shift of band as compared to can be deconvoluted into two 3540cm-1 ν(C=O) Li+ band of the samples shows that separate bands from 3487 to ions tend to coordinate and from 3252 to 3367cm-1 C-O-C O-H H-F to oxygen atom on group rath”
Characteristics of PEMA/PVdF-HFP blend polymeric gel films incorporated with lithium triflate salt in electrochromic device DOI: 10.1016/j.ssi.2011.11.035 -
Hydroxyl (O-H) 置信度 1.0
“The strong broadband observed in MRSG at around wavenumbers 3487 and 3369 cm-1 signify that OH was assigned to the stretching mode of hydroxyl functional group”
The Physico-Chemical and Mineralogical Characterization of Mg-Rich Synthetic Gypsum Produced in a Rare Earth Refining Plant DOI: 10.3390/su13094840
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