What absorbs at 3677 cm⁻¹ in an FTIR spectrum?
A band near 3677 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 4 | 1.0 |
| Silanol (Si-OH) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Chitosan | 1 | 1 | 1.0 |
| N-O bond | 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
-
N-O bond 置信度 1.0
“there are no bands in the region at 3677 indicating that in our Li-Zn-rich staurolite vibrations of the O1-H2 dipole are absent (Koch-Müller et al.”
Feenstra 等 - 2009 - Hydrogen zoning in zinc-bearing staurolite from a DOI: 10.2138/am.2009.3107 -
Chitosan 置信度 1.0
“Pristine chitosan (Figure 1a) showed the typical broad absorption cm-1 cm-1 cm-1 cm-1), between 3677 and 3000 (peaks at 3350 and 3289 which correlate cm-1 with the O-H (from chitosan and water) and N-H vibration in N-H groups.”
Gabriela Chuc-Gamboa 等 - 2021 - Antibacterial Behavior of Chitosan-Sodium Hyaluron DOI: 10.3390/app1103 -
Silicon (Si) 置信度 1.0
“which is the characteristic peak for the free terminal cm(cid:4)1, This silanol, while a new peak at 3677 being assigned to the (Si-OH-Al) Access bridged hydroxyl group of zeolite, appears.”
Huang 等 - 2017 - Synthesis of quinolines from aniline and propanol DOI: 10.1039/c7ra04526c -
Hydroxyl (O-H) 置信度 1.0
“LLM confirmed rule peak-group candidate”
The Influence of Branched Chain Length on Different Causticized Starches for the Depression of Serpentine in the Flotation of Pentlandite DOI: 10.3390/min12091081 -
Hydroxyl (O-H) 置信度 0.9
“Explicit assignment: 'absorption peak of OH appeared at 3677 cm-1'”
The investigation of adsorption and dissociation of H2O on Li2O (111) by ab initio theory DOI: 10.1016/j.apsusc.2017.02.133 -
Hydroxyl (O-H) 置信度 0.7
“Additional band in OH region.”
Souissi 等 - 2022 - Synthesis, Thermal Properties and Electrical Condu DOI: 10.21203/rs.3.rs-1294285/v1
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