What absorbs at 983 cm⁻¹ in an FTIR spectrum?
Ивица близо до 983 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 | 3 | 3 | 1,0 |
| C-O single bond | 2 | 2 | 1,0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Sulfate (SO4) | 1 | 1 | 0,8 |
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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Acetate достоверност 1,0
“There is no obvious variation of the intensity of the characteristic peak at 983cm-1 assigned to C-O-C group of PFSA-H molecules.”
Lang 等 - 2007 - Preparation and characterization of PVDF-PFSA blen DOI: 10.1016/j.memsci.2006.11.009 -
достоверност 1,0
“symmetric S O stretching interface during drying 1 cm-1 peak at 983 decreased until the signal was greatly vibration diminished.”
Simultaneous in situ Kelvin probe and Raman spectroscopy analysis of electrode potentials and molecular structures at polymer covered salt layers on steel DOI: 10.1016/j.electacta.2012.08.042 -
Amide достоверност 1,0
“2 2 1090cm-1 983cm-1 [37, 40], (C-N stretching), (C-H out of”
Sukprasert 等 - 2020 - Synchrotron FTIR Light Reveals Signal Changes of B DOI: 10.1155/2020/6149713 -
достоверност 1,0
“983 (m) [Si-O-Ar valence vibration].”
A Non-Hydrolytic Sol–Gel Route to Organic-Inorganic Hybrid Polymers: Linearly Expanded Silica and Silsesquioxanes DOI: 10.3390/gels9040291 -
достоверност 1,0
“This may lead to a The change of polarization of the oxygen atom on the Si-O-Al linkage, may cause an increase in the higher wavenumber contribution to the main Si-O band, thus broadening the band around 983 cm-1 remaining Si-O bond strengt”
Insights into the Microstructure of Hydrothermal Synthesized Nanoscale K2O-Al2O3-SiO2-H2O Particles DOI: 10.3390/nano10010063 -
C-O single bond достоверност 1,0
“normalizing the pre-exposure spectrum and the after-exposure spectrum at 1045cm-1 (C-O) stretching in plane (Edwards et al., 2003) and band was assigned to aromatic ether 983cm-1 was referred to the ring breathing stretching (Edwards et al.”
Lorenz 等 - 2022 - Survival of Xanthoria parietina in simulated space DOI: 10.1017/S1473550422000076 -
достоверност 1,0
“The 'ideal-case' of the free sulfate ion, belongs to a Td symmetry where a symmetric S-O stretching vibration (ν1) at 983 cm-1 and an asymmetric, triply degenerate S-O stretching vibration (ν3) at 1105 cm-1 are expected in the 800-1500 cm-1”
Marlowe 等 - 2020 - Characterization of Sulfated SnO2-ZrO(2)Catalysts DOI: 10.3390/catal10070726 -
достоверност 1,0
“The ATR spectra of the OM P5 and OM P6 samples indicated the presence of barite in cm-1 the upper ground layer, as evidenced by its typical bands at 1173, 1110, 1076, and 983 cm-1 due to the S-O stretching mode and by the doublet at 633 and”
Pintus 等 - 2022 - Multi-Analytical Investigations of Andy Warhol's DOI: 10.3390/polym14030633
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