What absorbs at 1950 cm⁻¹ in an FTIR spectrum?
A band near 1950 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 5 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 |
|---|---|---|---|
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Nitrile | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ester | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 0 | 1.0 |
| Alkene (C=C) | 1 | 0 | 1.0 |
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
-
Acetate 置信度 1.0
“≅960+1000 combination band C=O stretching shoulder Weak 1950 SiO2 1880-1866 ≅697+1163 SiO2 combination band”
FTIR photoacoustic spectroscopy for identification and assessment of soil components_ Chernozems and their size fractions DOI: 10.1016/j.pacs.2020.100162 -
Carbonyl (C=O) 置信度 1.0
“Although CO (or H Re-CO bands, if present, indicate larger clusters of Re on the cm-1 were found on CoRe(N), carbonyl bands around 1950 surface.”
Kumar 等 - 2011 - In Situ FT-IR Study on the Effect of Cobalt Precur DOI: 10.1021/jp104878e -
置信度 1.0
“Based on these former reports [56,57,62,66,67], as described 1950cm-1 above we assigned the new band at on Pt/C and 1960cm-1 on Pt-B to asymmetric bridged CO, CO(B) asym., which might be adsorbed on (100) terraces exposed on nano-”
Sato 等 - 2007 - Adsorptionoxidation of CO on highly dispersed Pt DOI: 10.1016/j.electacta.2007.05.007 -
Nitrile 置信度 1.0
“cm-1 Three novel CO bands were detected at 1950, 1936, and 1927 alongside a larger number of cyanide bands.”
Infrared Characterization of the Bidirectional Oxygen-Sensitive [NiFe]-Hydrogenase from E. coli DOI: 10.3390/catal8110530 -
置信度 0.4
“Text: '1950cm-1 ν (M´' (incomplete, likely carbonyl stretching)”
Duchatelet 等 - 2009 - An approach to retrieve information on the carbony DOI: 10.1029//2005GL022386
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