What absorbs at 2350 cm⁻¹ in an FTIR spectrum?
A band near 2350 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 |
|---|---|---|---|
| N h | 1 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.8 |
| Alkene (C=C) | 1 | 1 | 0.8 |
| Carbonyl (C=O) | 1 | 1 | 0.8 |
| Alkyl C-H | 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
-
置信度 0.9
“Peak at 2350 cm-1 arises from incomplete background subtraction of CO2 gas.”
Lee 和 Baiz - 2022 - How cryoprotectants work hydrogen-bonding in low- DOI: 10.1039/d2sc03188d -
N h 置信度 0.9
“Explicit assignment in text: N-H stretching at 2350 cm-1.”
Sharma 和 Sharma - 2016 - DOI: 10.4152/pea.201606365 -
置信度 0.9
“Explicit assignment: 'CO2特征吸收峰(2350 cm-1)'”
Zhao Feng-Qi 等 - 2013 - Preparation, Characterization and Combustion Catal DOI: 10.3866/PKU.WHXB20130111 -
Alkyl C-H 置信度 0.8
“Bands at 2350.3 cm-1 ascribed to stretching vibrations of alkanes (C-H).”
Ismail 等 - 2020 - Evaluation of a naturally derived tannin extracts DOI: 10.1007/s13202-019-0717-7 -
Carbonyl (C=O) 置信度 0.8
“Same sentence as above.”
Zhang 等 - 2022 - Mechanical, Thermal Stability, and Flame Retarding DOI: 10.1021/acsomega.2c04628 -
置信度 0.7
“Text: 'while ~2350 stretching was observed at ~1410 and ~1600 indicates trapped CO2 molecule'”
Kumar 等 - 2021 - Role of dysprosium doping concentration on structu DOI: 10.1016/j.physb.2021.413313 -
置信度 0.7
“Text: 'bands 2350.40 2325.00 were O-- C--'”
Hussain 等 - 2023 - Preparation and characterization of activated carb DOI: 10.1016/j.toxrep.2023.01.011 -
置信度 0.7
“Range 2350-2250 cm-1 assigned to trisubstituted aromatic rings.”
Iqbal 等 - 2022 - Fabrication of Poly(o-Chloroaniline) to MMT Clay a DOI: 10.3389/fmats.2022.874735
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