What absorbs at 1495 cm⁻¹ in an FTIR spectrum?
A band near 1495 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 |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 1.0 |
| Aromatic ring | 5 | 4 | 1.0 |
| Ring structure | 4 | 4 | 1.0 |
| C-O single bond | 3 | 2 | 1.0 |
| Secondary amine | 2 | 2 | 1.0 |
| C n single bond | 2 | 2 | 1.0 |
| Amide | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| C=n | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 2 | 1 | 1.0 |
| Methacrylate | 2 | 1 | 1.0 |
| Acetate | 2 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Bromine | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Lewis acid site | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Carbonate | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Nitrogen heterocycle | 1 | 1 | 1.0 |
| Boron nitrogen | 1 | 1 | 1.0 |
| N h | 1 | 1 | 0.9 |
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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Alkyl C-H 置信度 1.0
“3080cm-1 1590cm-1 1450cm-1 and Raman band at are assigned to C H stretching and the peaks at 1495 and are due at 1600, vibrations.”
Nagabalasubramanian 等 - 2009 - FTIR and FT Raman spectra, vibrational assignments DOI: 10.1016/j.saa.2009.02.044 -
Hydroxyl (O-H) 置信度 1.0
“At 1650 the hydroxyl group bending vibrations were identified for all Thebandsat1322and1495cm-1 belongtovibrationsofC-OandC=C[27].”
New Hybrid PVC/PVP Polymer Blend Modified with Er2O3 Nanoparticles for Optoelectronic Applications DOI: 10.3390/polym15030684 -
Alkyl C-H 置信度 1.0
“1601 amide II 1530 -C=Caromatic stretching 1495 C-H bending”
Benbow 等 - 2018 - A Novel Soft Contact Piezo-Controlled Liquid Cell DOI: 10.1038/s41598-018-34673-4 -
Boron nitrogen 置信度 1.0
“1664 1664 N-B-N stretching 1495 1496 1448 1450 C-H bending of CH”
Layer-by-layer thin films of polyaniline alternated with natural rubber and their potential application as a chemical sensor DOI: 10.1007/s10965-016-1170-7 -
Aromatic ring 置信度 1.0
“(cm-1): FTIR spectra 3261 (stretching vibration of-OH and -NH groups), 1597 (typical aromatic skeletal vibration), 1495 (stretching of disubstituted benzene ring), 796 (N-H out-of-plane bending vibration).”
Developing Further Versatility in Benzoxazine Synthesis via Hydrolytic Ring-Opening DOI: 10.3390/polym12030694 -
C=n 置信度 1.0
“Moreover, the band centered at 1495 corresponds to the characteristic vibration of C=N (pyridine ring) of PVP [36].”
Elhosiny Ali 等 - 2022 - Microstructure Study and LinearNonlinear Optical DOI: 10.3390/polym14091741 -
Aromatic ring 置信度 1.0
“absorptions at 1450, 1495 cm-1, and 1610 which can be ascribed to the aromatic skeletal ring breathing vibrations, and aromatic”
Germinario 等 - 2016 - Chemical characterisation of spray paints by a mul DOI: 10.1016/j.microc.2015.04.016 -
置信度 1.0
“1495 cm-1 and amide carbonyl (C=O) stretching vibrations at ~1670 cm-1 [24-27].”
Electrospun Fibres of Chitosan/PVP for the Effective Chemotherapeutic Drug Delivery of 5-Fluorouracil DOI: 10.3390/chemosensors9040070
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