What absorbs at 1446 cm⁻¹ in an FTIR spectrum?
A band near 1446 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
Možná přiřazení funkčních skupin
| Funkční skupina | Podpůrná fakta | Citované zdroje | Nejvyšší spolehlivost |
|---|---|---|---|
| Alkyl C-H | 9 | 7 | 1,0 |
| Amide | 7 | 7 | 1,0 |
| Alkene (C=C) | 4 | 4 | 1,0 |
| Aromatic ring | 3 | 3 | 1,0 |
| Ester | 3 | 3 | 1,0 |
| Ring structure | 3 | 3 | 1,0 |
| Carboxyl (COOH) | 3 | 2 | 1,0 |
| Metal oxygen | 2 | 2 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Ketone | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| N h | 2 | 2 | 1,0 |
| Secondary amine | 2 | 2 | 1,0 |
| C n single bond | 2 | 2 | 1,0 |
| Nitrogen heterocycle | 2 | 1 | 1,0 |
| Lignin | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Bronsted acid site | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Carbonate | 1 | 0 | 1,0 |
Pořadí odráží nahromaděné literární důkazy, nikoli jediné autoritativní pravidlo. Vždy potvrďte v kontextu vašeho vzorku.
Literatura za těmito přiřazeními
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Alkyl C-H spolehlivost 1,0
“Absorption determined the crystallinity factor by using the ratios of the cm-1 observed only at B spectra would peak at ~1446 areas covered under the peaks related to crystalline and in correspond to C-H deformation and aromatic ring vibrat”
Das 等 - 2017 - Extraction of xylem fibers from Musa sapientum and DOI: 10.1007/s12221-017-1187-5 -
Hydroxyl (O-H) spolehlivost 1,0
“cm-1, 1446 and 1413 which is the vibrations of the bending O-H group, according to the report by Reig et ■ RESULTS AND DISCUSSION al.”
Kustiyah 等 - 2022 - Effect of Calcium Carbonate Content on the Mechani DOI: 10.22146/ijc.72135 -
Alkyl C-H spolehlivost 1,0
“The peak at 1446.06 cm-1 was attributed to the -COOCvibration of the -CH 2and -CH groups, respectively.”
Study on the Effect of Fe3+ on Zircon Flotation Separation from Cassiterite Using Sodium Oleate as Collector DOI: 10.3390/min7070108 -
Amide spolehlivost 1,0
“1518 (1) 1519 (2) cm-1 *1,445 C-N Stretch, 1446 (2) 1448 (1) 1448 (1)”
Sessa 和 Woods - 2011 - Purity Assessment of Commercial Zein Products Afte DOI: 10.1007/s11746-011-1765-4 -
spolehlivost 1,0
“absorption peaks around 1130-1230 cm-1, which are related to the asymmetric stretching stretchingvibrationsandthepeakat1446cm-1 canbeattributedtoaromaticC=Cstretching vibrations of Fe-O-Fe.”
Degradation of Diazo Congo Red Dye by Using Synthesized Poly-Ferric-Silicate-Sulphate through Co-Polymerization Process DOI: 10.3390/polym15010237 -
Alkyl C-H spolehlivost 1,0
“cm-1 cal CH stretching at approximately 2943 [16, 17], peaks at 1446 2 cm-1 and 1370 also referring to the CH deformation modes of the CH group 2 cm-1 [18].”
Experimental and DFT studies on the structural and optical properties of chitosan/polyvinyl pyrrolidone/ZnS nanocomposites DOI: 10.1007/s00289-023-04700-0 -
Acetate spolehlivost 1,0
“Therefore, when the material was ◦C, Moreover, the bands observed at 1560 cm-1 and 1446 cm-1 are assigned to C=O vibrations of AcAc heat treated at 1000 it was transformed completely into the monoclinic structure and appears white, bidentat”
Zirconia/Hydroxyapatite Composites Synthesized Via Sol-Gel: Influence of Hydroxyapatite Content and Heating on Their Biological Properties DOI: 10.3390/ma10070757 -
Ring structure spolehlivost 1,0
“In the cm-1) asynchronous spectrum, negative correlations observed between (1446 and 1460 and cm-1 1650 indicates that C = O bond of PVP decreases before a decrease in the bands cm-1 associated with cyclic structures.”
Investigation of Poly(ethersulfone)/Polyvinylpyrrolidone ultrafiltration membrane degradation by contact with sodium hypochlorite through FTIR mapping and two-dimensional correlation spectroscopy DOI: 10.1016/j.polymdegradstab.2019.01.017
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