What absorbs at 1434 cm⁻¹ in an FTIR spectrum?
Ивица близо до 1434 cm⁻¹ може да сочи към няколко функционални групи. По-долу са най-вероятните присвоявания, подредени по количеството публикувани доказателства, които ги подкрепят — всяко едно проследимо до литература (DOI) и кръстосано валидирано спрямо нашите 130 000+ референтни спектъра и графика на знанията.
Backed by 6 cited sources
Възможни определяния на функционални групи
| Функционална група | Подкрепящи факти | Цитирани източници | Най-висока достоверност |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
Класирането отразява натрупаните литературни доказателства, а не единично авторитетно правило. Винаги потвърждавайте спрямо контекста на вашата проба.
Литература зад тези определяния
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Alkyl C-H достоверност 1,0
“The shift in bending of CH vibrations 1434 2 2928 a 1642 cmK1 1237 are from 1438 to 1434, 1430 indicates the chemical 3423”
Bhajantri 等 - 2006 - Microstructural studies on BaCl2 doped poly(vinyl DOI: 10.1016/j.polymer.2006.03.054 -
Carboxyl (COOH) достоверност 1,0
“We will walk through the assignment of the , three new peaks grow at 1434, 1443, and acm-1, [Mg:EDTA]2coefficient COO band using the participation method, which 1462 while in , four new peaks appear”
CH Mode Mixing Determines the Band Shape of the Carboxylate Symmetric Stretch in Apo-EDTA, Ca2+–EDTA, and Mg2+–EDTA DOI: 10.1021/acs.jpca.1c03061 -
достоверност 1,0
“L-1, 27 This SERS method has a wide logarithmic range of 0.0069-6.9 mg with L-1 cm-1, cm-1, 28 μg detection limit of 0.78, 3.4, 0.51 at the peak of 1143 1392 and 1434 cm-1, 29 respectively.”
4-Aminothiophenol capped Halloysite Nanotubes/Silver Nanoparticles as Surface-enhanced Raman Scattering Probe for In-situ Derivatization and Selective Determination of Nitrite Ions in Meat Product DOI: 10.1016/j.talanta.2020.121366 -
Protein достоверност 1,0
“Moreover, the damage of the integrity of the triple helix of collagen is indicated by the ratio of the cm-1 cm-1 intensities of the bands from 1434 (for P1) and 1415 (for P2) and of amide III, which is 1434)/I(A = 0.144/0.100 = P1: I(A 1236”
The Comparative Study of the State of Conservation of Two Medieval Documents on Parchment from Different Historical Periods DOI: 10.3390/ma13214766 -
Carbohydrate достоверност 1,0
“The peaks of the spectra were whereas the band at 1434 confirms CH 2 assigned to the corresponding functional groups symmetric bending in cellulose.”
Muthukumar 和 Chidambaram - 2023 - ISOLATION AND QUANTIFICATION OF CELLULOSE FROM VAR DOI: 10.35812/CelluloseChemTechnol.2021. -
Alkyl C-H достоверност 1,0
“PC3 corresponds to the core spectrum and presents the distinctive amide I symmetric peak of cm-1,15 β-sheet whilst PC2 represents the ring, with resonances due to lipids (distinctive bands at 1434 (CH deformation) the conformation at 1667 2”
Detection of Aβ plaque-associated astrogliosis in Alzheimer's disease brain by spectroscopic imaging and immunohistochemistry DOI: 10.1039/c7an01747b
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