What absorbs at 1428 cm⁻¹ in an FTIR spectrum?
A band near 1428 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
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| N-O bond | 1 | 1 | 1,0 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Litteratur bakom dessa identifieringar
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N-O bond förtroende 1,0
“as s at 323 K and further outgassing at different temperatures inside alyst 3 3 cm-1 absorption peak at 1428 is absent which is high intense The a progressive disappearance of the adsorbed NH3+ NO bands during the rectangle:”
Low-temperature selective catalytic reduction of NO with NH3 over V/ZrO2 prepared by flame-assisted spray pyrolysis: Structural and catalytic properties DOI: 10.1016/j.apcatb.2012.08.012 -
Alkyl C-H förtroende 1,0
“cm-1 vibration of The sharp peak at 1428 can be assigned to the CH 2-CO cm-1, cm-1and deformation.”
Crystal Growth, Spectral, Optical, Laser damage, Photoconductivity and Dielectric Properties of Semiorganic L-cystine hydrochloride Single Crystal DOI: 10.1016/j.saa.2015.06.113 -
Alkene (C=C) förtroende 1,0
“LLM confirmed rule peak-group candidate”
Hasanuddin 等 - 2020 - Physicochemical Characterization and Controlled Re DOI: 10.22146/ijc.40921 -
Alkyl C-H förtroende 1,0
“The absorption while mode 16 is primarily a CH s 1 and 2), which indicates that these terminal atoms contribute cm-1) sconsists of the COO and CH vibrations peak B (1428 s to the three normal modes.”
CH Mode Mixing Determines the Band Shape of the Carboxylate Symmetric Stretch in Apo-EDTA, Ca2+–EDTA, and Mg2+–EDTA DOI: 10.1021/acs.jpca.1c03061 -
Water (H2O) förtroende 1,0
“LLM confirmed rule peak-group candidate”
Pillarization of Sumatera Bentonite by Sodium-assisted As Effective Adsorbent of Anionic Surfactants Sodium Lauryl Sulphate (SLS) Waste DOI: 10.9767/bcrec.16500) -
Alkyl C-H förtroende 1,0
“peak at 1427.6 cm was assigned to -CH in alkyl substituted 3 data for the Ch-PANI-NiO nanocomposite are tabulated in Table-1, -1 amide group [48] .”
Synthesis and characterization of chitosan-polyaniline-nickel(II) oxide nanocomposite DOI: 10.1016/j.molstruc.2021.130750 -
Alkyl C-H förtroende 1,0
“618 cm-1 cm-1 vibrations), 1509 (C=O and C=C vibrations), 1428 (olefinic C-H bending vibrations), cm-1 cm-1 1278 (aromatic C-O stretching vibrations), 1024 (C-O-C stretching vibrations) [13].”
Ahmed 等 - 2021 - STRUCTURAL AND OPTICAL CHARACTERISTICS OF POLY(VIN DOI: 10.4314/bcse.v35i3.12
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