What absorbs at 874 cm⁻¹ in an FTIR spectrum?
A band near 874 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
Atribuiri posibile ale grupelor funcționale
| Grup funcțional | Fapte suport | Surse citate | Încredere maximă |
|---|---|---|---|
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Carbonate | 1 | 0 | 1,0 |
Clasamentul reflectă dovezile acumulate din literatură, nu o singură regulă autoritară. Confirmați întotdeauna în contextul mostrei dvs.
Literatura din spatele acestor atribuiri
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Hydroxyl (O-H) încredere 1,0
“Table 2 The Particle Size by XRD of Chemically Synthesized C-O C-O 942 stretching 1015 stretching CuO-NPs Cu-O-H Cu-O-H 874 bending 929 bending”
El Bialy 等 - 2020 - Comparative Toxicological Effects of Biologically DOI: 10.2147/IJN.S241922 -
Hydroxyl (O-H) încredere 1,0
“High sensitivcm)1 fingerprint region (e.g., strong 1032, 899, and 1500 to 400 ity to small variations in protein secondary structure (Table 1), cm)1 peaks), the shape of the O-H stretch region, and a peak at 874 molecular geometry, and hydr”
Elkins - 2011 - Rapid Presumptive Fingerprinting of Body Fluids DOI: 10.1111/j.1556-4029.2011.01870.x -
C c single bond încredere 1,0
“The other peaks include 1064 (C-C skeletal vibration), 874 cm-1 198 (vinylidene group), 853 (-CH 2rocking), 761 (-CF 3stretching) and 694 (-CH 2bending) all”
Effect of polyaniline (PANI) on Poly(vinylidene fluoride-co-hexaflouro propylene) (PVDF-co-HFP) polymer electrolyte membrane prepared by breath figure method DOI: 10.1016/j.polymertesting.2017.03.012 -
Oxygen heterocycle încredere 1,0
“The bands at 1254, brane during the phase inversion process depending on the cm(cid:1)1 are assigned to assymetric vibration of 874, and 699 interaction of the silica with the polymer matrix and the affinity CAOAC, CAOAC CACl (epoxy ring) v”
Jon 等 - 2013 - Influence of silica addition on the properties of DOI: 10.1002/app.38997 -
încredere 1,0
“It can be isotope exchange, can be assigned to overtones of the very noted that D-exchange affects mentioned bands but also the 1670-1650cm-1, 874cm-1, ν(CO) strong bands at ca.”
Rozenberg 等 - 2004 - Low temperature FTIR spectra and hydrogen bonds in DOI: 10.1016/j.saa.2003.12.013 -
Carboxyl (COOH) încredere 1,0
“2h, the most intense band of PLA at 874 was assigned to a C-COO vibration.”
Optical photothermal infrared spectroscopy with simultaneously acquired Raman spectroscopy for two-dimensional microplastic identification DOI: 10.1038/s41598-022-23318-2
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