What absorbs at 1676 cm⁻¹ in an FTIR spectrum?
Et bånd nær 1676 cm⁻¹ kan peke på flere funksjonelle grupper. Nedenfor er de mest sannsynlige tildelingene, rangert etter hvor mye publiserte bevis som støtter hver — hver enkelt sporbar til litteratur (DOI) og kryssvalidert mot våre 130 000+ referansespektre og kunnskapsgraf.
Backed by 8 cited sources
Mulige funksjonelle gruppe-tilordninger
| Funksjonell gruppe | Støttende fakta | Siterte kilder | Toppkonfidens |
|---|---|---|---|
| Amide | 5 | 5 | 1.0 |
| Carbonyl (C=O) | 3 | 3 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Protein beta sheet | 1 | 1 | 1.0 |
| Protein beta turn | 1 | 1 | 1.0 |
Rangeringen gjenspeiler akkumulert litteraturbevis, ikke en enkelt autoritativ regel. Bekreft alltid mot prøvekonteksten din.
Litteratur bak disse tilordningene
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Amide konfidens 1.0
“The positive influence of PC2 loadings had three peaks at 1676, 1630 cm-1 assigned to amide I (β-turns and β-sheets), and 1063 cm-1 (mostly might be related to cellulose and hemicellulose) which differentiated the control SR (outstanding) f”
Specific Mycoparasite-Fusarium Graminearum Molecular Signatures in Germinating Seeds Disabled Fusarium Head Blight Pathogen’s Infection DOI: 10.3390/ijms22052461 -
Carbonyl (C=O) konfidens 1.0
“Text: 'IR peaks at 1676 cm-1 down-shifted from 1703 cm-1 (C=O stretching)'”
Curve-fitting FTIR studies of loratadine/hydroxypropyl-β-cyclodextrin inclusion complex induced by co-grinding process DOI: 10.1016/j.jpba.2010.06.010 -
Carbonyl (C=O) konfidens 1.0
“J.Morosetal./JournalofPharmaceuticalandBiomedicalAnalysis43(2007)1277-1282 1280 1676cm-1 and it can be related to the presence of a carbonyl group (C O).”
Moros 等 - 2007 - Quality control Fourier transform infrared determi DOI: 10.1016/j.jpba.2006.10.036 -
Amide konfidens 1.0
“The shifts of 1676 cm-1 Liquid → Liquid 1 + Liquid 2 transition occurs also through a and 1655 correspond to amide I weakly and more strongnucleation and growth process but in most cases through hetly H-bonded respectively.”
Origin of Invariant Gel Melting Temperatures in the c-T Phase Diagram of an Organogel DOI: 10.1021/acs.langmuir.6b00995 -
Amide konfidens 1.0
“peaks of amide-I at 1676 (-)/1666 (+)/1658 (-)/1651 (+) At 163 K, observed water signals are similar to those at cm-1 upon formation of Batho at 77 K, among which the 77 K, with some variations (Fig.”
Hanai 等 - 2021 - Light-induced difference FTIR spectroscopy of prim DOI: 10.2142/biophysico.bppb-v18.005 -
Amide konfidens 1.0
“LLM confirmed rule peak-group candidate”
Purification and Characterization of a Novel Calcium-Binding Heptapeptide from the Hydrolysate of Tilapia Bone with Its Osteogenic Activity DOI: 10.3390/foods11030468 -
Amide konfidens 1.0
“Signals near 2900 (C-H stretching band) were scarcely informative, whereas the clear cm-1 (C=O shoulder-peak at 1676 stretching band) could be from amide I in proteins.”
“Argento Deaurato” or “Argento Biancheggiato”? A Rare and Interesting Case of Silver Background in Italian Painting of the XIII Century DOI: 10.3390/app10072404 -
Alkene (C=C) konfidens 1.0
“cm-1 The intense band observed at 1676 is due to vibrations of C=C (cis and trans), confi rming the presor parts of molecules inside their cavity through non-”
Pinto Cotrim 等 - 2016 - Preparation of beta-CyclodextrinLatex Dispersion DOI: 10.7569/JRM.2015.634122
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