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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| N c o | 2 | 2 | 1.0 |
| Isocyanate | 2 | 1 | 0.9 |
| Silicon hydride | 1 | 1 | 0.9 |
| Nitrile | 1 | 1 | 0.7 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
N c o 置信度 1.0
“explicit assignment (absence)”
Krol 等 - 2021 - Polyurethane cationomers containing fluorinated so DOI: 10.1007/s00396-021-04819-4 -
Silicon hydride 置信度 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 置信度 0.9
“Isocyanate stretching band disappearance monitored.”
Jitaru 等 - 2016 - Polymer-graphene composites by the photocuring of DOI: 10.2298/JSC151218040J -
N c o 置信度 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 置信度 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 -
置信度 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
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