What absorbs at 1523 cm⁻¹ in an FTIR spectrum?
A band near 1523 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 |
|---|---|---|---|
| Protein beta sheet | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Lignin | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 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
-
Hydroxyl (O-H) 置信度 1.0
“1523 and (O-H stretch vibration) at 3022”
Akhgari 等 - 2013 - Indomethacin electrospun nanofibers for colonic dr DOI: 10.5681/apb.2013.014 -
Amide 置信度 1.0
“LLM confirmed rule peak-group candidate”
Synthesis of Poly(Trimethylene Carbonate) from Amine Group Initiation: Role of Urethane Bonds in the Crystallinity DOI: 10.3390/polym13020280 -
Lignin 置信度 1.0
“Factors describing crystallinity, C=C cm-1 Band (E) at 1523 represents bonds in the arosuch as the total crystallinity index ( T CI ) , lateral - 1 matic rings of lignin (27).”
Hejna 等 - 2017 - Performance properties of rigid polyurethane-polyi DOI: 10.1515/epoly-2017-0012 -
N-O bond 置信度 1.0
“The spectrum of CoAl 2O nanocomposites calcined at 1100 °C is also shown by FT-IR, with 4 cm-1 cm-1 3sharp bands between 2893 and 3335 (C-O and C-C vibration) and at 1523 (NO vibration).”
Synthesis and electrochemical performance of α-Al2O3 and M-Al2O4 spinel nanocomposites in hybrid quantum dot-sensitized solar cells DOI: 10.1038/s41598-022-21186-4 -
Protein beta sheet 置信度 1.0
“The major components of amide II are structures and aspartate and glutamate, cm-1 β-sheet due the peak absorbance at 1523 and 1571 [21].”
Bacterial Colonization on the Surface of Copper Sulfide Minerals Probed by Fourier Transform Infrared Micro-Spectroscopy DOI: 10.3390/cryst10111002
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