What absorbs at 2260 cm⁻¹ in an FTIR spectrum?
A band near 2260 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
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| N c o | 2 | 2 | 1.0 |
| Isocyanate | 2 | 1 | 0.9 |
| Silicon hydride | 1 | 1 | 0.9 |
| Nitrile | 1 | 1 | 0.7 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
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N c o hyder 1.0
“explicit assignment (absence)”
Krol 等 - 2021 - Polyurethane cationomers containing fluorinated so DOI: 10.1007/s00396-021-04819-4 -
Silicon hydride hyder 0.9
“Explicit assignment: 'SiH, SiOH and water peaks at 2260, 3650, and 800 cm-1'.”
Landheer 等 - 1998 - Fourier transform infrared spectroscopy of corona- DOI: 10.1116/1.589870 -
Isocyanate hyder 0.9
“Isocyanate stretching band disappearance monitored.”
Jitaru 等 - 2016 - Polymer-graphene composites by the photocuring of DOI: 10.2298/JSC151218040J -
N c o hyder 0.9
“Explicit assignment: 'vibration band of the -NCO, which appears as a band at 2260 cm-1'”
Song 和 Luo - 2014 - Effect of Hyperbranched Polyesters on HTPB Polyure DOI: 10.1590/S1516-14392013005000193 -
Nitrile hyder 0.7
“Absence of peak indicates absence of cyanide group.”
Joshua 等 - 2020 - Bioassay-guided fractionation, phospholipase A(2)- DOI: 10.1080/13880209.2020.1839510 -
hyder 0.7
“Text: 'stretching band at 2260 decreased throughout the reaction' and 'urethane groups were responsible for the ban' (band).”
Puyadena 等 - 2022 - Polyurethaneacrylic hybrid dispersions containing DOI: 10.1016/j.porgcoat.2022.107005
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.
Dehongli fy sbectrwm