What absorbs at 1371 cm⁻¹ in an FTIR spectrum?
A band near 1371 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 |
|---|---|---|---|
| C-O single bond | 2 | 2 | 0.9 |
| Aromatic ring | 1 | 1 | 0.8 |
| Lipid | 1 | 1 | 0.8 |
| Lignin | 1 | 1 | 0.7 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
C-O single bond confidence 0.9
“Peak at 1371 cm-1 represents C-O-C stretching vibration.”
Ashames 等 - 2022 - Development, characterization and In-vitro evaluat DOI: 10.1371/journal.pone.0271623 -
C-O single bond confidence 0.9
“Characteristic of C-O stretching bonds.”
Avendano 等 - 2021 - Encapsulation of Cochleates Derived from Salmonell DOI: 10.3390/polym13193426 -
confidence 0.9
“Explicit assignment.”
Maab 等 - 2009 - SPEEKPolyimide Blends for Proton Conductive Membr DOI: 10.1002/fuce.200800121 -
Lipid confidence 0.8
“Text mentions 1371 in context of lipid and aromatic compounds.”
Chatterjee 和 Das - 2020 - Developmental stages of biofilm and characterizati DOI: 10.1002/jobm.201900550 -
confidence 0.8
“Same as above.”
Chrzan 等 - 2019 - Towards Methane Combustion Mechanism on Metal Oxid DOI: 10.1007/s11244-019-01143-8 -
confidence 0.8
“Text: 'due to methyl (-) alkane/alkyl groups' for 1371.39 cm-1.”
Ishtiaq 等 - 2020 - Antioxidant potential and chemical characterizatio DOI: 10.1590/0001-3765202020190387 -
Lignin confidence 0.7
“Mentioned as lignin band.”
Dinant 等 - 2019 - Synchrotron FTIR and Raman spectroscopy provide un DOI: 10.1093/jxb/ery396 -
confidence 0.7
“Substituent groups (1371 cm-1).”
Hou 等 - 2018 - Biomimetic Growth of Hydroxyapatite on Electrospun DOI: 10.3390/polym10091032
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