What absorbs at 1504 cm⁻¹ in an FTIR spectrum?
A band near 1504 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 |
|---|---|---|---|
| Lignin | 3 | 3 | 0.95 |
| Alkene (C=C) | 3 | 3 | 0.9 |
| Aromatic ring | 2 | 2 | 0.8 |
| Carboxyl (COOH) | 1 | 1 | 0.7 |
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
-
Lignin 置信度 0.95
“Explicit assignment: 'peak at 1504 which is assigned to C=C stretching of lignin'.”
Xiaoping 等 - 2023 - DOI: 10.4067/s0718-221x2023000100413 -
置信度 0.9
“Attributed to phenyl nucleus stretching of BPEBPA.”
Surender 等 - 2014 - Bismaleimide and Bispropargyl Ether Blends Curing DOI: 10.1134/S1560090414050157 -
Alkene (C=C) 置信度 0.9
“Explicit assignment: 'two bands located at 1504 and 811 can be ascribed to the ν(C=C) stretching of the conjugated aromatic system'”
Dani 等 - 2017 - Click-based porous cationic polymers for enhanced DOI: 10.1039/x0xx00000x -
Alkene (C=C) 置信度 0.9
“Band at 1504 cm-1 corresponds to C=C stretching.”
Guo 等 - 2012 - Preparation of a Novel Nanocomposite of Polyanilin DOI: 10.1155/2012/202794 -
置信度 0.9
“Explicit assignment in text”
Kumar 和 Bhaskar - 2019 - Computational and spectral studies of 3,3 '-(propa DOI: 10.1016/j.heliyon.2019.e02420 -
Alkene (C=C) 置信度 0.9
“Text: 'C=C bond vibration at 1504'”
Larosa 等 - 2017 - Preparation and characterization of polycarbonate DOI: 10.3762/bjnano.8.203 -
Lignin 置信度 0.9
“Explicit assignment in text: 'band centered at 1,504 cm-1' and 'C=C stretching of lignin' from doc 16083.”
Xiao 等 - 2020 - From the Soft to the Hard Changes in Microchemist DOI: 10.3389/fpls.2020.00466 -
Aromatic ring 置信度 0.8
“Text: 'Spectral Region Aromatic skeletal vibrations 1504 c'”
Lopez-Malvar 等 - 2021 - FTIR Screening to Elucidate Compositional Differen DOI: 10.3390/agronomy11061130
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