What absorbs at 1660 cm⁻¹ in an FTIR spectrum?
A band near 1660 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
Moguće dodjele funkcionalnih skupina
| Funkcionalna skupina | Potporni dokazi | Citirani izvori | Najveća pouzdanost |
|---|---|---|---|
| Amide | 23 | 20 | 1,0 |
| Carbonyl (C=O) | 13 | 13 | 1,0 |
| Protein alpha helix | 2 | 2 | 0,9 |
| Protein | 2 | 2 | 0,8 |
| Amine primary | 1 | 1 | 0,9 |
| Alkene (C=C) | 1 | 1 | 0,9 |
| C=n | 1 | 1 | 0,9 |
| Protein beta turn | 1 | 1 | 0,9 |
| C n single bond | 1 | 1 | 0,6 |
| Oxygen heterocycle | 1 | 1 | 0,6 |
| N h | 1 | 1 | 0,6 |
Rangiranje odražava akumulirane literaturne dokaze, a ne jedno autoritativno pravilo. Uvijek provjerite u kontekstu vašeg uzorka.
Literatura iza ovih dodjela
-
Amide pouzdanost 1,0
“Explicit assignment: '1660 cm-1 (amide I)'”
Li 等 - 2020 - Improving Mildew Resistance of Soy Meal by Nano-Ag DOI: 10.3390/polym12010169 -
Carbonyl (C=O) pouzdanost 1,0
“Explicitly assigned.”
Lv 等 - 2017 - The Adsorption Capacity of GONsCMCFe3O4 Magnetic DOI: 10.3390/ma10010058 -
pouzdanost 1,0
“explicit assignment”
Roy 等 - 2010 - Differentiation and mineralization of murine mesen DOI: 10.1016/j.diff.2010.03.003. -
pouzdanost 1,0
“explicit assignment”
Roy 等 - 2010 - Processing of type I collagen gels using nonenzyma DOI: 10.1002/jbm.a.32231. -
Amide pouzdanost 1,0
“Band associated with Amide I.”
Stevens 等 - 2019 - Detectability of biosignatures in a low-biomass si DOI: 10.1038/s41598-019-46239-z -
Amide pouzdanost 0,95
“Explicit assignment in text.”
Lazar 等 - 2021 - Synthesis of Ethylenediaminetetraacetic Acid-Funct DOI: 10.37358/Mat.Plast.1964 -
Protein beta turn pouzdanost 0,9
“Text: 'peakat1660cm-1...characteristicoftheturnstructure'”
Balazs 等 - 2014 - Protein structure is changed in psoriatic skin on DOI: 10.1016/j.microc.2014.07.003 -
Amide pouzdanost 0,9
“Amide I peak centered at 1660 cm-1”
Brielle 和 Arkin - 2021 - Isotope-Edited Amide II Mode A New Label for Site DOI: 10.1021/acs.jpclett.1c01073
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