What absorbs at 696 cm⁻¹ in an FTIR spectrum?
A band near 696 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 |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| Fluorine (C-F) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Carbohydrate | 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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Carbohydrate 置信度 1.0
“798cm(cid:3)1, 780cm(cid:3)1 693cm(cid:3)1 and that were assigned for type 3 cm(cid:3)1 two nearly similar intensity peaks in M23/08 at 696 and a-polysaccharide band of [20].”
Choong 等 - 2014 - Identification of geographical origin of Lignosus DOI: 10.1016/j.molstruc.2014.04.001 -
C-O single bond 置信度 1.0
“The cm-1 band at 1504 is attributed to the phenyl nucleus stretching of BPEBPA and the absorption bands at 696 Methods ≡C-H cm-1 are attributed to the deforma(cid:2) and 1173 tion and the ether linkage present in the BPEBPA, The FTIR spectr”
Surender 等 - 2014 - Bismaleimide and Bispropargyl Ether Blends Curing DOI: 10.1134/S1560090414050157 -
Alkyl C-H 置信度 1.0
“The pronounced peak at 1446.41 is assigned to the can be observed at 754.61 and 695.93 cm-1, while the out-of-plane deformation of the phethe CH group bending vibration.”
Modeling and Simulation of Fabricated Graphene Nanoplates/Polystyrene Nanofibrous Membrane for DCMD DOI: 10.3390/polym13172987 -
Fluorine (C-F) 置信度 1.0
“The presence of the fluoroalkyl groups was proved by cm-1 the bands at 1241 and 1206 that are attributed to the C-F stretching, and the weak cm-1 band at 696 ascribed to the CF2 scissoring [35].”
Bellido-Aguilar 等 - 2019 - Effect of a fluoroalkyl-functional curing agent on DOI: 10.1016/j.surfcoat.2019.02.006 -
Alkyl C-H 置信度 1.0
“structure;1:2:4substitutedphenylring Houttoplanedeviationalvibrations 834 C H 754 VibrationofaromaticC Sbond 696 C H 545 BendingofC S Ostretchingvibrations 1176;1109;1027 O”
Electrochimica Acta Sulfonated polyphenyl ether by electropolymerization DOI: 10.1016/j.electacta.2012.07.082 -
Alkyl C-H 置信度 1.0
“2 1,451cm-1) 696cm-1) (ρCH as well as pure PS peak 2, 1,491 and concentration(Pandayetal.,2009;Majeed, 2019).”
Kim 等 - 2020 - Lithium Salt Dissociation in Diblock Copolymer Ele DOI: 10.3389/fenrg.2020.569442
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