What absorbs at 1542 cm⁻¹ in an FTIR spectrum?
A band near 1542 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 8 cited sources
Attributions possibles de groupes fonctionnels
| Groupe fonctionnel | Faits à l＇appui | Sources citées | Confiance maximale |
|---|---|---|---|
| Amide | 6 | 6 | 0,9 |
| Protein random coil | 1 | 1 | 0,8 |
Le classement reflète les preuves bibliographiques accumulées, et non une règle faisant autorité. Confirmez toujours dans le contexte de votre échantillon.
Bibliographie derrière ces attributions
-
Amide confiance 0,9
“Explicitly stated as amide band”
Dolete 等 - 2019 - Development and sequential analysis of a collagen- DOI: 10.25083/rbl/24.1/108.117 -
Amide confiance 0,9
“Explicit assignment: 'amide II band, at around 1542'”
Drozdz 等 - 2020 - Low-Vacuum Filtration as an Alternative Extracellu DOI: 10.3390/pharmaceutics12090872 -
Amide confiance 0,9
“Associated with amide II”
Jose Beriain 等 - 2022 - Tenderness of PGI Ternera de Navarra Beef Sample DOI: 10.3390/foods11213426 -
Amide confiance 0,9
“Amide II peak at 1542 cm-1 disappeared after treatment.”
Spano 等 - 2023 - Arsenic Adsorption and Toxicity Reduction of An Ex DOI: 10.3390/jmse11020325 -
confiance 0,8
“Peak assignments at 1542 and 1644 wavenumbers from cellular proteins.”
Lane 和 Seo - 2012 - Attenuated Total Reflectance Fourier Transform Inf DOI: 10.1166/jnn.2012.6582 -
Protein random coil confiance 0,8
“Shifted to 1542 cm-1 assigned to random coil.”
Wang 等 - 2005 - Temperature effect on the structural stability, si DOI: 10.1016/j.bpc.2004.12.004 -
confiance 0,8
“Peak at 1542 cm-1 assigned to pyridine adsorbed on acid sites.”
Du 等 - 2017 - Synthesis of core-shell structured FAUSBA-15 comp DOI: 10.1080/14686996.2017.1396561 -
Amide confiance 0,8
“amide II band component in neat PA6”
Lee 等 - 2019 - Mechanical Properties of Carbon Monoxide Reduced G DOI: 10.1063/1.5084880
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