What absorbs at 3535 cm⁻¹ in an FTIR spectrum?
Ивица близо до 3535 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 7 cited sources
Възможни определяния на функционални групи
| Функционална група | Подкрепящи факти | Цитирани източници | Най-висока достоверност |
|---|---|---|---|
| Hydroxyl (O-H) | 6 | 6 | 1,0 |
| Fatty acid | 2 | 2 | 1,0 |
| N n bond | 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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Hydroxyl (O-H) достоверност 1,0
“7 (2007) 721 cm-1 Mg2+ C is peaked at 3535 and is associated with OH ⎯ vibration perturbed by ions in the lattice.”
Choubey 等 - 2007 - Influence of doping on OH absorption in LiNbO3 cry DOI: 10.1002/crat.200610894 -
достоверност 1,0
“The Fourier transform infrared (FTIR) spectra of these coesite crystals taken in the OH cm(cid:3)1, stretching region consist of two sharp peaks at 3535 and 3500 which were assigned previously to two different boron-based n n point defects,”
Deon 等 - 2009 - Coupled boron and hydrogen incorporation in coesit DOI: 10.1127/0935-1221/2009/0021-1843 -
Hydroxyl (O-H) достоверност 1,0
“The mixture was titrated spectra of blending oil, cottonseed oil and CCl cm-1 was related to the O-H funcsorption band at 3535 with 0.01 M of potassium hydroxide and shaken vigorously tional groups present in oils, revealing the characteris”
Hu 等 - 2019 - Rapid Determination of Acid Value of Edible Oils v DOI: 10.5650/jos.ess18156 -
Fatty acid достоверност 1,0
“3690cm(cid:1)1, the other two peaks, at 3618 and Notably, the use of the quartz cuvette can not only provide an are almost cm(cid:1)1 accurate and long optical path length for measuring the FTIR specunchanged, indicating that the band at 35”
Determination of the acid values of edible oils via FTIR spectroscopy based on the OH stretching band DOI: 10.1016/j.foodchem.2016.06.035 -
Hydroxyl (O-H) достоверност 1,0
“The baseline points were optimized for each band: The oxidative stability of the fresh samples was determined by cm(cid:0) cm(cid:0) 1) 1, the alcohol band (3535 was measured using 4600 the hyRancimat (Oil Stability Index, OSI).”
A study of the dynamic changes of stability taking place during virgin olive oil storage period examined by mesh cell-FTIR spectroscopy DOI: 10.1016/j.lwt.2022.114160 -
Fatty acid достоверност 1,0
“could be an indication that the production of free fatty acids and their ageing, as well as the intensity of the CO Moreover,theadditionalpresenceofthebandat3535cm-1suggested conversion into lead carboxylates did not occur at the same rate.”
Sotiropoulou 等 - 2018 - Advanced analytical investigation on degradation m DOI: 10.1016/j.microc.2018.03.007 -
Hydroxyl (O-H) достоверност 0,9
“Explicitly assigned as OH stretching vibration in text.”
Del Vecchio 等 - 2019 - High-Temperature Evolution of Point Defect Equilib DOI: 10.3390/min9100574
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