What absorbs at 966 cm⁻¹ in an FTIR spectrum?
A band near 966 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 8 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Alkene (C=C) | 2 | 2 | 0.9 |
| Nucleic acid | 2 | 2 | 0.8 |
| Styrene | 1 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.9 |
| Ammonium | 1 | 0 | 0.9 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
confidence 1.0
“Explicitly assigned to trans double bonds.”
Nikje 和 Nataj - 2014 - Cloisite 15A degrees Nanoclay as an Effective PTC DOI: 10.1590/0104-1428.1622 -
confidence 0.95
“Peak assigned to polybutadiene.”
Wang 等 - 2022 - Aging Characteristics of Rubber Modified Bitumen M DOI: 10.3390/su14052612 -
confidence 0.95
“Explicit assignment: 'specific absorption peaks at 966 ... used to study the degradation of the polybutadiene (PB)'”
Yu 等 - 2023 - Laboratory Investigation of Storage Stability and DOI: 10.3390/ma16072564 -
Alkene (C=C) confidence 0.9
“Snippet: 'peak area related to double bonds...band with a peak point at 966 cm-1'”
Cebi 等 - 2017 - Prediction of peroxide value in omega-3 rich micro DOI: 10.1016/j.foodchem.2017.01.013 -
confidence 0.9
“Peak at 966 cm-1 correlated with trans fatty acid content; C18:1 is a mixed compound of TO.”
Cho 等 - 2011 - Quantification of trans fatty acid content in Fren DOI: 10.1016/j.foodchem.2010.09.078 -
C-O single bond confidence 0.9
“Text: 'cm-1 C-O absorption band at 966'”
Contreras 等 - 2010 - Evaluation of Nano Zinc (ZnO) for Surface Enhancem DOI: 10.1007/s11947-009-0237-4 -
confidence 0.9
“Frequently used peak for SBS polymer segments (PB and PS).”
Yan 等 - 2018 - Critical matters in using Attenuated Total Reflect DOI: 10.1016/j.polymertesting.2018.07.019 -
confidence 0.9
“Text: 'dianionic phosphodiester vibration at 966'”
Al-Jorani 等 - 2018 - The Application of ATR-FTIR Spectroscopy and the R DOI: 10.3390/s18124297
Have a spectrum with this band?
Upload your FTIR spectrum and get a full interpretation report — peak assignments with literature citations, library matches, and a confidence-rated evidence chain — in seconds.
Interpret my spectrum