What absorbs at 1598 cm⁻¹ in an FTIR spectrum?
A band near 1598 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 |
|---|---|---|---|
| Carbonyl (C=O) | 3 | 3 | 1.0 |
| Carboxyl (COOH) | 3 | 3 | 0.9 |
| N h | 2 | 2 | 0.9 |
| Alkene (C=C) | 1 | 1 | 0.9 |
| Water (H2O) | 1 | 1 | 0.9 |
| Aromatic ring | 1 | 1 | 0.8 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Carbonyl (C=O) confidence 1.0
“Represented C=O asymmetric stretching.”
Ouyang 等 - 2012 - Adsorption of Cu (II) from aqueous single metal so DOI: 10.4028/www.scientific.net/AMR.535-537.1601 -
confidence 1.0
“Explicit assignment: '~1598 (G band)'.”
Rahman 等 - 2021 - Effect of Iron Loading on the Catalytic Activity o DOI: 10.3390/app11010205 -
confidence 0.95
“Explicit assignment: 'confirmed the existence of the D band and G band at 1337 and 1598'”
Taha 和 Saleh - 2018 - Dynamic mechanical and optical characterization of DOI: 10.1007/s00339-018-2026-2 -
confidence 0.95
“Explicit assignment in text.”
Lazar 等 - 2021 - Synthesis of Ethylenediaminetetraacetic Acid-Funct DOI: 10.37358/Mat.Plast.1964 -
Carboxyl (COOH) confidence 0.9
“Explicit assignment: C=O of COO- stretching”
Mazuki 等 - 2019 - An investigation on the abnormal trend of the cond DOI: 10.1007/s11581-018-2734-9 -
Water (H2O) confidence 0.9
“attributed to H-O-H bending vibration”
Reddy 等 - 2011 - EPR and photoluminescence studies of ZnOMn nanoph DOI: 10.1016/j.saa.2011.03.014 -
Carboxyl (COOH) confidence 0.9
“Explicit assignment: '-COO- cm-1-peak 1598'”
Tran 等 - 2018 - Radiation synthesis and characterization of super- DOI: 10.1016/j.envpol.2018.07.129 -
Carboxyl (COOH) confidence 0.9
“asymmetric -COO stretching for sodium alginate”
Castro 等 - 2021 - Design and Optimization of a Self-Assembling Compl DOI: 10.3390/polym13132080
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