What absorbs at 889 cm⁻¹ in an FTIR spectrum?
A band near 889 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
Możliwe przypisania grup funkcyjnych
| Grupa funkcyjna | Fakty wspierające | Cytowane źródła | Najwyższa wiarygodność |
|---|---|---|---|
| Carbohydrate | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Ring structure | 1 | 1 | 1,0 |
| C c single bond | 1 | 0 | 1,0 |
Ranking odzwierciedla zgromadzone dowody literaturowe, a nie pojedynczą autorytatywną zasadę. Zawsze potwierdzaj w kontekście swojej próbki.
Literatura stojąca za tymi przypisaniami
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Carbohydrate wiarygodność 1,0
“The characteristic bands of β-glucan are at 1156, 1076, 889cm-1.”
Liu 等 - 2006 - A study of the mushrooms of boletes by Fourier tra DOI: 10.1117/12.667136 -
Ring structure wiarygodność 1,0
“The weak band at 923 can be cm(cid:2)1, ascribed to the NH twisting, followed by a weak band at 889 which is related 3 cm(cid:2)1 to the ring deformation.”
Synthesis, crystal structure, and characterization of cyclohexylammonium tetraisothiocyanatocobaltate(II): A single-source precursor for cobalt sulfide and oxide nanostructures DOI: 10.1016/j.heliyon.2019. -
Carboxyl (COOH) wiarygodność 1,0
“Bands at 2916, 2848, 889 cm-1 spectra of libraries, but in this case, these shifts could be ascribed to a can be ascribed to stearic acid, usually added to 1710, and 1472 siliconeand other polymers asstabilizingagent[21].”
Non-invasive identification of plastic materials in museum collections with portable FTIR reflectance spectroscopy: Reference database and practical applications DOI: 10.1016/j.microc.2015.07.016 -
Carbohydrate wiarygodność 1,0
“The infrared spectra of from oats and barley cm-1 showed a broad peak at a wavelength of 3000-3500 corresponding to OH groups, cm-1 cm-1 2922-3000 corresponding to C-H stretch, 1654.55 corresponding to bending cm-1 vibrations of bound water”
Shah 等 - 2022 - Encapsulation of Catechin into beta-Glucan Matrix DOI: 10.3390/foods11101493 -
Alkene (C=C) wiarygodność 1,0
“The signals cm-1 C-H C-H out-of-plane at 3079 and 889 cm-1 were induced by C=C stretch and bend of terminal at 3079 and 889 were induced by C=C stretch and out-of-plane bend of terminal vinyl groups, respectively, characteristic of limonene”
Rapid Classification and Recognition Method of the Species and Chemotypes of Essential Oils by ATR-FTIR Spectroscopy Coupled with Chemometrics DOI: 10.3390/molecules27175618 -
Hydroxyl (O-H) wiarygodność 1,0
“∼899cm-1 to Ge-OH stretching motion, and the band at correspondstoGe-O-Gestretchingmotion.Thetwostretch- ∼889cm-1 ∼550 and are ing vibration bands located at 2.2.”
Wu 等 - 2011 - Simple Synthesis and Luminescence Characteristics DOI: 10.1155/2011/841701
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