What absorbs at 1287 cm⁻¹ in an FTIR spectrum?
A band near 1287 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 7 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 | 1 | 1.0 |
| Methoxy (OCH3) | 2 | 2 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Secondary amine | 2 | 1 | 1.0 |
| Methyl | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| S eq o | 1 | 1 | 1.0 |
| C n single bond | 1 | 0 | 1.0 |
| Amide | 1 | 0 | 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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S eq o 置信度 1.0
“The peaks at A cm-1 1286.77, 1217.99, 1052.08 and 1044.26 show the presence of S=O stretching in DG1 cm-1 (alone) and electrocoagulated flocs residue [43-47].”
Sakthisharmila 等 - 2017 - A characteristic study on generation and interacti DOI: 10.1016/j.molliq.2017.01.106 -
Acetate 置信度 1.0
“the C-O single bond vibration was specified at 1287 This assignment value was cm-1.”
Density Functional Theory and Molecular Docking Investigations of the Chemical and Antibacterial Activities for 1-(4-Hydroxyphenyl)-3-phenylprop-2-en-1-one DOI: 10.3390/molecules26123631 -
N h 置信度 1.0
“Secondly, the reduction stretching vibrations of N=N ring and N-N ring for benzenic in the NiO peak intensity and the increase in the PANI rings and quinonic rings, respectively, while the bands at peak intensity at 608nm confirm successful”
Fayemi 等 - 2016 - Electrochemical Detection of Phenanthrene Using Ni DOI: 10.1155/2016/9614897 -
N-O bond 置信度 1.0
“Though no peaks are observed for CH 1286.6, 1281.4 and 1268.3 48 1536.855 1484.6 319.0 ScisCH3 stretching vibrations in the experimental FTIR spectrum, a characteristic 49 1531.053 1479.0 17.0 ScisCH2(ali) cm(cid:1)1 is seen corresponding t”
Computational and spectral studies of 3,3'-(propane-1,3-diyl)bis(7,8-dimethoxy-1,3,4,5-tetrahydro-2H-benzo[d]azepin-2-one) DOI: 10.1016/j.heliyon.2019.e02420 -
C c single bond 置信度 1.0
“cm-1 cm-1 V from C-COO stretching, 1098/1065 cm-1 (amorphous/crystalline) from C-O-C stretching, at β-(1→4) β-(1→4) from glycosidic linkage from inulin, at 1059 and 1270 cm-1 from C-O-C, C-O, and C-C glycosidic linkage from inulin, at 1059”
Synthesis and Characterization of Inulin-Based Responsive Polyurethanes for Breast Cancer Applications DOI: 10.3390/polym12040865 -
Alkyl C-H 置信度 1.0
“The bands from 1373.32, 1357.89, 1298.09, and ◦C ThemaindecompositionprocessofEEtakesplaceinthetemperaturerange187-324 1286.52 cm-1 are the consequence of symmetric methyl bending δs(CH3) and the latter two”
Simu 等 - 2022 - Thermal Degradation Process of Ethinylestradiol-Ki DOI: 10.3390/pr10081518 -
Acetate 置信度 1.0
“Peaks at around 1160 and 1287 cm-1 could be attributed to C-O and C=O bonds in the organic compounds [27].”
Sobola 等 - 2021 - PVDF Fibers Modification by Nitrate Salts Doping DOI: 10.3390/polym13152439
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