What absorbs at 3426 cm⁻¹ in an FTIR spectrum?
A band near 3426 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 | 9 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Silanol (Si-OH) | 1 | 1 | 0.9 |
| Phenolic | 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
-
Alkyl C-H 置信度 1.0
“intensityshows the presence of the aliphatic -CH of DVB-1 shows the absorption peak at 3425.6 cm-1 cm-1;”
Aritonang 等 - 2019 - Grafting of Oleic Acid On Cyclic Natural Rubber Re DOI: 10.13005/ojc/350119 -
置信度 1.0
“Explicit assignment in text”
Meng 等 - 2019 - Preparation of aminated chitosan microspheres by o DOI: 10.1098/rsos.182226 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: peak at 3426 ascribed to stretch of hydroxyl groups”
Dinc 等 - 2020 - Characterization of short-length multi-walled carb DOI: 10.1007/s42823-019-00081-5 -
Hydroxyl (O-H) 置信度 0.9
“Broad band due to OH stretching.”
El-Atawy 等 - 2022 - Chitosan Capped Copper Oxide Nanocomposite Effici DOI: 10.3390/catal12090964 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: '3425.58 that show OH groups'”
Hastuti 和 Assya'adha - 2020 - Synthesis and Characterization of Chitosan Membran DOI: 10.1088/1757-899X/833/1/012068 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment in text.”
Ahmad 等 - 2020 - Turning date palm waste into carbon nanodots and n DOI: 10.1038/s41598-020-73097-x -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'bands observed at 3426 are related to the -OH stretches'.”
Cheng 等 - 2018 - A new approach to improve mechanical properties an DOI: 10.1016/j.conbuildmat.2018.05.134 -
Silanol (Si-OH) 置信度 0.9
“Explicit assignment in text.”
Malacas 等 - 2019 - The removal of copper (II) and lead (II) from aque DOI: 10.1051/matecconf/201926805006
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