What absorbs at 1959 cm⁻¹ in an FTIR spectrum?
A band near 1959 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 4 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Silicon hydride | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Silicon hydride confidence 1.0
“The 2094 10 (cid:1)1960(cid:2) 1858 (1850) 1959 1959 cm-1 mode in silicon can be attributed to a SiH defect.”
Rochat 等 - 2010 - Germanium and Silicon A Comparative Study of Hydr DOI: 10.1149/1.3329611(cid:4) -
Acetate confidence 1.0
“Orientation of polarisation Components range of maxima to main axis of polymer 0o Dominated by cellulose (Liang and Marchessault 1,158-1,162 C-O-C asymmetric stretch 1959;”
Chang 等 - 2014 - Deposition and organisation of cell wall polymers DOI: 10.1007/s00425-013-1980-3 -
Carbonyl (C=O) confidence 1.0
“It is interesting to note that these bands are different to those cm-1, 1900 corresponding to the CO vibrational stretching of the carbonyl ligands on the cm-1, corresponding to the CO vibrational stretching of the carbonyl ligands on the m”
Zappia 等 - 2022 - Microporous Polymelamine Framework Functionalized DOI: 10.3390/polym14245472 -
confidence 0.9
“Assigned to CO band A”
Horn 等 - 2014 - Fourier transform infrared spectroscopy study ofli DOI: 10.12688/f1000research.5836.1
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