What absorbs at 2251 cm⁻¹ in an FTIR spectrum?
A band near 2251 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 2 cited sources
Caktime të mundshme të grupeve funksionale
| Grup funksional | Fakte mbështetëse | Burimet e cituara | Besueshmëri e lartë |
|---|---|---|---|
| Methyl | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| N c o | 1 | 1 | 1,0 |
Renditja pasqyron provat e grumbulluara të literaturës, jo një rregull të vetëm autoritar. Gjithmonë konfirmoni në kontekstin e mostrës suaj.
Literatura pas këtyre caktimeve
-
N c o besueshmëri 1,0
“Deep analysis of such a band allows for distinguishing the cm-1 the band at 2251 as characteristic for the stretching vibrations of NCO moieties.”
TG-DSC and TG-FTIR Studies of Annelated Triazinylacetic Acid Ethyl Esters—Potential Anticancer Agents DOI: 10.3390/molecules28041735 -
Carboxyl (COOH) besueshmëri 1,0
“cm-1, band at 2251 partially overlapping the very strong band of asymC=O (CO 2), can be attributed to isocyanic acid (HNCO) and/or methyl isocyanate (CH 3NCO) and/or ethyl isocyanate (C 2H 5NCO), which will be confirmed by mass spectromet”
Zangaro 等 - 2019 - Study of the thermal behavior in oxidative and pyr DOI: 10.1016/j.jorganchem.2005.11.058.
Keni një spektër me këtë brez?
Ngarkoni spektrin tuaj FTIR dhe merrni një raport të plotë interpretimi — caktim i pikut me citime literaturë, përputhje biblioteke dhe një zinxhir provash të vlerësuar me besueshmëri — në sekonda.
Interpreto spektrin tim