What absorbs at 1406 cm⁻¹ in an FTIR spectrum?
A band near 1406 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 | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Carbonate | 1 | 1 | 1.0 |
| C-O single 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
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置信度 1.0
“The band at cm-1 ~1406 has been identified as a B1 signal, which corresponds to "v3a" in Fleet et al.”
Clark 等 - 2016 - Quantification of CO2 concentration in apatite DOI: 10.2138/am-2016-5661 -
C-O single bond 置信度 1.0
“cm-1, vibration at 1666 shifts to 1645 the C-N stretching vibration at 1438 shifts to 1406 cm-1 cm-1 and the C-OH stretching vibration at 1073 shifts to 1037 (Figure 3).”
Synthesis, Characterization, and Antibacterial Activity of Cross-Linked Chitosan-Glutaraldehyde DOI: 10.3390/md11051534 -
Carbonate 置信度 1.0
“cm-1 The intense bands at 1406 and 1027 which are ascribed to lead white, calcite, and”
New Insights into the Medieval Hispano-Muslim Panel Painting: The Alfarje Found in a Balearic Casal (Spain) DOI: 10.3390/molecules28031235 -
Alkyl C-H 置信度 1.0
“Finally, the absorption band at 1406 may extracts from the standard protocol, and to published FTIR work on be attributed either to the delta C-H vibrations (scissoring mode) or”
Ganot 等 - 2022 - An alternative and effective method for extracting DOI: 10.1242/bio.059536 -
Alkyl C-H 置信度 1.0
“The peak at cm-1 cm-1 1450 represents the asymmetrical bending of CH of the lipid acyl chains, while the peak at 1406 rep3 resents the CH bending vibration of acyl residues of the lipids and proteins.”
Extracellular vesicles derived from microgreens of Raphanus sativus L. var. caudatus Alef contain bioactive macromolecules and inhibit HCT116 cells proliferation DOI: 10.1038/s41598-022-19950-7 -
Carboxyl (COOH) 置信度 1.0
“LLM confirmed rule peak-group candidate”
Fourier Transform Infrared (FTIR) Spectroscopic Study of Biofilms Formed by the Rhizobacterium Azospirillum baldaniorum Sp245: Aspects of Methodology and Matrix Composition DOI: 10.3390/molecules28041949
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