What absorbs at 1494 cm⁻¹ in an FTIR spectrum?
A band near 1494 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
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1.0 |
| Amide | 4 | 4 | 1.0 |
| Aromatic ring | 4 | 3 | 1.0 |
| Ring structure | 3 | 3 | 1.0 |
| N h | 3 | 3 | 1.0 |
| Secondary amine | 3 | 3 | 1.0 |
| C n single bond | 3 | 3 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Methyl | 2 | 2 | 1.0 |
| Alkene (C=C) | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Lipid | 1 | 1 | 1.0 |
| Nitro (NO2) | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
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Acetate hyder 1.0
“2 cm-1 cm-1, 1639 C=O stretching band vibration, 1494 1011 cm-1 cm-1 cm-1 bands, 733 bands, and 438 bands were”
Reactive Oxygen Species (ROS) Are Generated as Organic Contaminants Are Broken Down: SnO DOI: 10.1007/s12668-023-01111-3 -
Ring structure hyder 1.0
“The characteristic absorption peaksarefoundtobeat2922cm-1isduetotheC Hstretching,1566cm-1iscorrespondsto cm-1 cm-1 C stretching vibration of quinoid ring, 1548 for C N bond stretching, 1494 C cm-1 is corresponds to stretching vibration of b”
Patil 等 - 2011 - Electrical Conductivity of PolyanilineNiZnO3 Comp DOI: 10.1080/00150193.2011.620836 -
Alkyl C-H hyder 1.0
“and 1261 A carbonyl functional group C=O Fourier Transform Infrared (FTIR) Technique cm-1 stretching is represented by a band at 1729 cm-1 while a peak at 1494 was attributed to the FTIR spectrum of acrylic coating (AC), HLE and methyl grou”
Zulkifli 等 - 2020 - Corrosion Resistance Evaluation of Acrylic Coating DOI: 10.17576/jkukm-2020-32(2)-14 -
Alkyl C-H hyder 1.0
“The band at 1665 is for C=O, cm-1 a-willemite in the proper formation of phase with all the while the peak at 1494 is ascribed to CH scissors 2 adiffraction peaks indexed to the standard pattern of vibration [51].”
Alibe 等 - 2019 - Effects of polyvinylpyrrolidone on structural and DOI: 10.1007/s10973-018-7874-7 -
hyder 1.0
“On the other hand, the infrared spectrum of between the positive charge of nitrogen in the polymer and AnCl (Figure 2(a)) presents essentially the bands at 1564 and 1494cm-1 the partially negatively charged surface of the clay as reprewhich”
Bekri-Abbes 和 Srasra - 2015 - Electrical and Dielectric Properties of Polyanilin DOI: 10.1155/2015/516902 -
Alkyl C-H hyder 1.0
“Weak bands at 1494 and 1420 ((cid:9)(CH ((cid:9)(CH modes in CH 3) as) and CH 2)) [32].”
Upgrading the PtCu intermetallic compounds: The role of Pt and Cu in the alloy DOI: 10.1016/j.cattod.2019.11.026 -
Aromatic ring hyder 1.0
“The spectra for amlodipine besylate drug (Figure 4b) show peaks at 2964.69 for C-CH stretching, at 1698.53, 3 cm(cid:1)1 cm(cid:1)1 cm(cid:1)1 1676.11 for ester C=O stretching, at 1493.92 for aromatic skeletal stretching, at 1205.55 for Sul”
Formulation, optimization, and characterization of amlodipine besylate loaded polymeric nanoparticles DOI: 10.1177/09673911211056154 -
Amide hyder 1.0
“The PANI spectrum shows characteristic peaks from benzenoid rings cm-1, N=Q=N 1494 C-N band of an aromatic amine and vibration (Qquinoid ring) at 1301 and”
Kukulski 等 - 2020 - A Polymeric Composite Material (rGOPANI) for Acid DOI: 10.3390/polym12051051
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.
Dehongli fy sbectrwm