What absorbs at 494 cm⁻¹ in an FTIR spectrum?
A band near 494 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 6 cited sources
Gán nhóm chức có thể
| Nhóm chức | Sự kiện hỗ trợ | Nguồn tham khảo | Độ tin cậy cao nhất |
|---|---|---|---|
| Metal oxygen | 2 | 2 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Silicon carbon | 1 | 1 | 1,0 |
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Tài liệu tham khảo đằng sau các gán này
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Metal oxygen độ tin cậy 1,0
“vibrational peak of Cu-O stretching vibrations at the wave numbers of 494 and 604 34 35 The band gaps determined from the UV-visible spectra are 2.18 eV and 2.0 eV for 36 Accepted 37 precipitation and deposition methods respectively.”
Jillani 等 - 2018 - Synthesis, characterization and biological studies DOI: 10.1088/2053-1591/aab864 -
Silicon carbon độ tin cậy 1,0
“The composites also shows peaks at 584 Ni+2 cm-1 which present in tetrahedral position & around 494 the intern sic vibration of corresponds to vibration of octahedral group that conforms the formation of PANI/NiZnO”
Patil 等 - 2011 - Electrical Conductivity of PolyanilineNiZnO3 Comp DOI: 10.1080/00150193.2011.620836 -
Alkyl C-H độ tin cậy 1,0
“493 510 Therefore, air pollution problem caused by nitrogenous found to be correlated with CH absorption peak heights at U 494 511 pollutantswillbecomeincreasingly prominent in PRD regions wavenumbers of ~690, ~760 and ~890/cm as well as SO”
Yu 等 - 2018 - Fast screening compositions of PM2.5 by ATR-FTIR DOI: 10.1016/j.jes.2017.11.021 -
độ tin cậy 1,0
“2g 2g corresponds to the bending vibrations of oxygen atoms in the tetrahedral sites, shows two to the bending vibrations of oxygen atoms in the tetrahedral sites, shows two distinct peaks distinct peaks at 494 and 460 cm-1, indicating diff”
Synthesis of CoFe2O4 through Wet Ferritization Method Using an Aqueous Extract of Eucalyptus Leaves DOI: 10.3390/coatings13071250 -
Aromatic ring độ tin cậy 1,0
“(o-chloroaniline) prepared by the chemical-oxidation method, the It was showed that pure polymer (POC) 1,573cm-1 1,494cm-1 and indicate the existence strongest bands at demonstrated absorption at a lower wavelength than poly of the quinonoi”
Iqbal 等 - 2022 - Fabrication of Poly(o-Chloroaniline) to MMT Clay a DOI: 10.3389/fmats.2022.874735 -
Metal oxygen độ tin cậy 1,0
“In the FTIR spectra of CuO from the traditional chemical synthesis, Cu-O stretching was observed at 494 and 595 cm-1 (Figure 2a).”
Green and Traditional Synthesis of Copper Oxide Nanoparticles—Comparative Study DOI: 10.3390/nano10122502
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