What absorbs at 1585 cm⁻¹ in an FTIR spectrum?
A band near 1585 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 |
|---|---|---|---|
| Aromatic ring | 3 | 3 | 0.9 |
| Carboxyl (COOH) | 3 | 1 | 0.9 |
| Alkene (C=C) | 2 | 1 | 0.9 |
| Carbonyl (C=O) | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.9 |
| C=n | 1 | 1 | 0.9 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Aromatic ring confidence 0.9
“Explicit assignment in text.”
Sandin 等 - 2013 - Reverse osmosis membranes oxidation by hypochlorit DOI: 10.1080/19443994.2012.700010 -
Aromatic ring confidence 0.9
“Peak at 1585 cm-1 corresponds to quinonoid.”
Suneetha 和 Vedhi - 2013 - Synthesis, Characterisation and Voltammetric behav DOI: 10.4028/www.scientific.net/AMR.678.258 -
Alkene (C=C) confidence 0.9
“Text: 'peak of 1585 cm⁻¹ stretching vibrations'.”
Weltschev 等 - 2014 - Compatibility of High-Density Polyethylene Grades DOI: 10.1002/pts.2028 -
confidence 0.9
“Explicit assignment in text.”
Weng 等 - 2013 - Synthesis of iron-based nanoparticles by green tea DOI: 10.1016/j.indcrop.2013.09.024 -
C=n confidence 0.9
“Band at 1585 cm-1 corresponds to C=N stretching.”
Guo 等 - 2012 - Preparation of a Novel Nanocomposite of Polyanilin DOI: 10.1155/2012/202794 -
Amide confidence 0.9
“Amide I region 1585-1720 cm-1.”
Kobrina 等 - 2012 - Clustering of infrared spectra reveals histologica DOI: 10.1016/j.joca.2012.01.014 -
confidence 0.9
“Explicit assignment in text: 1585 (w, υ Ph-H)”
Li 等 - 2013 - Crystal Structures and Antifungal Activities of Fl DOI: 10.3390/molecules181215737 -
confidence 0.9
“First-order scattering of sp2 carbon”
Pena-Bahamonde 等 - 2017 - Functionalization of reduced graphene oxide with p DOI: 10.1002/macp.
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