What absorbs at 3005 cm⁻¹ in an FTIR spectrum?
Ивица близо до 3005 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 | 7 | 7 | 1,0 |
| Fatty acid | 3 | 3 | 1,0 |
| Alkene (C=C) | 3 | 2 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Hydrogen 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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Alkyl C-H достоверност 1,0
“The peak at 3005 attributes to the stretching vibrations of C-H in cm-1 H-C=C and the peak at 718.8 corresponds to out-of-plane bending vibrations of ACCEPTED”
Liang 等 - 2017 - Thermo-stability and aging performance of modified DOI: 10.1016/j.matdes.2017.04.060 -
Alkyl C-H достоверност 1,0
“3005 attributed to =CH stretching vibrations indicates the presence of unsaturated fatty acids in glycerides and wax esters of sebaceous components.”
Optimization of Electrochemical Visualization of Latent Fingerprints with Poly(Neutral Red) on Brass Surfaces DOI: 10.3390/polym13193220 -
Alkyl C-H достоверност 1,0
“cm-1 increase in absorption and shaper peaks were obtained 1091.71 (C-O stretching), 1288.45 (C-O cm-1 and growth of nanoparticles was also enhanced but stretching) and 1334.74 (O-H bending), 1419.61 cm-1 cm-1 (C=C if concentration of subst”
Iqtedar 等 - 2020 - Biosynthesis, optimization and characterization of DOI: 10.24275/rmiq/Bio1605 -
Alkyl C-H достоверност 1,0
“~1080 glycogen (C-O stretching at ~1030 and protein phosphorylation (~970 cm-1, The high-region, between 3700-2800 can also be used for analysis, where information of water cm-1), cm-1), (-OH stretching at ~3275 protein (symmetric -NH stret”
Morais 等 - 2020 - Tutorial multivariate classification for vibratio DOI: 10.6084/m9.figshare.7607420.v1; -
Fatty acid достоверност 1,0
“Moreover, the other unsaturated lipid [21,22] and saturated fatty acid [22]) were loaded for PC1, which separated the cm-1 negative values of PC1 loading of the respective peaks at 3005 and 2956 (assigned as unsaturated positive score of th”
FTIR Microspectroscopy for the Assessment of Mycoplasmas in HepG2 Cell Culture DOI: 10.3390/app10113766 -
Alkyl C-H достоверност 1,0
“[13,30,32], 1376 a maximum at 3005 (bending symmetric vibration of This finding is due to the oil C-H bonds of CH”
Poiana 等 - 2015 - Use of ATR-FTIR spectroscopy to detect the changes DOI: 10.1515/chem-2015-0110 -
Alkene (C=C) достоверност 1,0
“The absorption band at 3005 in the spectrum of fatty esters (a) is attributed to unsaturated alkenes (-C=C-H), which has been completely disappeared in the spectrum of epoxidized fatty ester (b).”
Microwave-Assisted Catalytic Synthesis of Bio-Based Copolymers from Waste Cooking Oil DOI: 10.3390/ma10030315 -
достоверност 1,0
“By blending of high cm-1 hydrolysis, oxidation, isomerization, and polymerization due unsaturated oils with palm olein, a clear shift of 3007 cm-1 to high temperature and absorption of water and oxygen band to 3005 occurs.”
Siddique 等 - 2015 - Effect of frying on the rheological and chemical p DOI: 10.1007/s13197-013-1124-6
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