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 6 cited sources
Možná přiřazení funkčních skupin
| Funkční skupina | Podpůrná fakta | Citované zdroje | Nejvyšší spolehlivost |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| N-O bond | 1 | 1 | 1,0 |
Pořadí odráží nahromaděné literární důkazy, nikoli jediné autoritativní pravidlo. Vždy potvrďte v kontextu vašeho vzorku.
Literatura za těmito přiřazeními
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N-O bond spolehlivost 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 spolehlivost 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) spolehlivost 1,0
“LLM confirmed rule peak-group candidate”
Hasanuddin 等 - 2020 - Physicochemical Characterization and Controlled Re DOI: 10.22146/ijc.40921 -
Alkyl C-H spolehlivost 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) spolehlivost 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 spolehlivost 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
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