What absorbs at 1167 cm⁻¹ in an FTIR spectrum?
A band near 1167 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
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Ester | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| Ammonium | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Alkyl C-H confidence 1.0
“LLM confirmed rule peak-group candidate”
Chhokkar 等 - 2020 - Electrical and Structural Characterization of 100 DOI: 10.1063/5.0023335 -
C-O single bond confidence 1.0
“LLM confirmed rule peak-group candidate”
Owonubi 等 - 2018 - Characterization and in vitro release kinetics of DOI: 10.1007/s40090-018-0139-2 -
Ammonium confidence 1.0
“peaks observed after the introduction of NH at 1248, 1425, cm-1, Mn/TiO 2, the peak at 1167 which corresponds to s(NH 3) (cid:228) 3 cm-1 1605, and 1669 correspond to the species that were coordinated to Lewis acid sites, immediately disapp”
Pena 等 - 2004 - Identification of surface species on titania-suppo DOI: 10.1021/jp0313122 -
Ketone confidence 1.0
“The band at 1167 cm-1 is attributed to the C-CO-C stretch and bending mode in ketone, respectively.”
The Fine-Tuned Release of Antioxidant from Superparamagnetic Nanocarriers under the Combination of Stationary and Alternating Magnetic Fields DOI: 10.3390/antiox10081212 -
Ester confidence 1.0
“LLM confirmed rule peak-group candidate”
Negim 等 - 2016 - Preparation and Characterization of Acrylic Primer DOI: 10.1155/2016/1754168
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