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 7 cited sources
Gán nhóm chức có thể
| Nhóm chức | Sự kiện hỗ trợ | Nguồn tham khảo | Độ tin cậy cao nhất |
|---|---|---|---|
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Alkyl C-H | 1 | 1 | 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 |
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Tài liệu tham khảo đằng sau các gán này
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Hydroxyl (O-H) độ tin cậy 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) độ tin cậy 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 độ tin cậy 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 độ tin cậy 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 -
độ tin cậy 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) độ tin cậy 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 -
Alkyl C-H độ tin cậy 1,0
“05 908 for the stereocomplex crystallite with 31 helix confirmation ← 06 Stretching of C-COO 874 870 07 Stretching and deformation of C-H, assigned to crystalline phase 756 08 Stretching and bending of C-H”
Effects of Amphiphilic Chitosan on Stereocomplexation and Properties of Poly(lactic acid) Nano-biocomposite DOI: 10.1038/s41598-018-22281-1
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