What absorbs at 2880 cm⁻¹ in an FTIR spectrum?
Ивица близо до 2880 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 8 cited sources
Възможни определяния на функционални групи
| Функционална група | Подкрепящи факти | Цитирани източници | Най-висока достоверност |
|---|---|---|---|
| Alkyl C-H | 14 | 11 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Water (H2O) | 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
“Vibrational bands at 2935 cm-1 cm-1 and 2880 referred to a C-H stretching, 1478 to the CH bending of an alkyl”
Can 等 - 2023 - Choline Chloride-Based Deep Eutectic Solvent-Treat DOI: 10.3390/f14030569 -
Alkyl C-H достоверност 1,0
“The peak at 2880.33 is the symmetric stretching mode of all 2 44 cm-1 N-alkyl chains.”
Structural Dependence and Spectroscopic Evidence of Methane Dissolution in Ionic Liquids DOI: 10.1021/acs.jpcb.8b03178 -
Alkyl C-H достоверност 1,0
“Another significant cm-1 change was observed at the wavenumber of 2880 ascribing C-H and O-H stretching.”
Jaiswal 和 Dhayal - 2020 - Preparation of 2D coatings of functionally graded DOI: 10.1016/j.matchemphys.2020.122663 -
Alkyl C-H достоверност 1,0
“The ∼2880cm-1 ∼1400cm-1 ∼2350 ∼1300 Among these peaks, those at and peaks at and are show reasonable agreement C-H known to correspond to CO with those in the experiment.”
Kurokawa 等 - 2016 - Possible formation of one-dimensional chains of C2 DOI: 10.7567/APEX.9.049201 -
Alkyl C-H достоверност 1,0
“The absorption peak at about 2880 is associated with the stretching vibration of C-H, arising from the produced organic matter in the incomplete combustion process.”
Effect of In3+ substitution on structural and magnetic properties of Ni ferrite nanoparticles DOI: 10.1016/j.physb.2016.09.031 -
Alkyl C-H достоверност 1,0
“The schematic of the benzene, the initially two prominent peaks at 2880 and 2945 [BMIM]+ structure and the numbering system for cation is cm-1 due to the CH (ss) and CH (FR) of the neat ssp spectrum 3”
GasLiquid Interface of Hydrophobic and Hydrophilic Room-Temperature Ionic Liquids and Benzene: Sum Frequency Generation and Surface Tension Studies DOI: 10.1021/jp803177w -
Alkyl C-H достоверност 1,0
“The bands at 2880 and 2960 on the other hand, are due to symmetric and asymmetric stretch modes of sp3 bonded CH groups.”
Titus 等 - 2006 - Nitrogen and hydrogen related infrared absorption DOI: 10.1016/j.tsf.2005.12.062 -
Alkyl C-H достоверност 1,0
“the hallmark of absorption bands at cm-1 3424 assigned to (O-H) overlapped with (N-H) stretching vibration [4, 22], cm-1 Also, the characteristic band at 2880 assigned to (C-H) stretching [22-24], cm-1 Also, the at 1653 assigned to C = O st”
Experimental and DFT studies on the structural and optical properties of chitosan/polyvinyl pyrrolidone/ZnS nanocomposites DOI: 10.1007/s00289-023-04700-0
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