What absorbs at 1481 cm⁻¹ in an FTIR spectrum?
A band near 1481 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 7 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Aromatic ring | 4 | 4 | 0.9 |
| Sulfonyl | 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
“Text: 'the benzene ring band (1481-1485 cm-1)'”
Jevremovic 等 - 2014 - Investigation of the effect of acid dopant on the DOI: 10.1016/j.cap.2014.06.018 -
confidence 0.9
“Text: '1481cm-1(C)'”
Routh 等 - 2009 - Self assembly of poly(o-methoxy aniline) with RNA DOI: 10.1016/j.bpc.2009.05.004 -
Aromatic ring confidence 0.9
“Assigned to benzenoid ring stretching”
Hidayat 等 - 2016 - Effect of Polyaniline Polymerization Methods on Th DOI: 10.1063/1.4958588 -
Sulfonyl confidence 0.9
“Explicit assignment in text.”
Patala 等 - 2022 - In Situ Generation of Fouling Resistant AgPd Modi DOI: 10.3390/membranes12080762 -
Aromatic ring confidence 0.8
“Peaks at 1481 cm-1 due to benzenoid ring of Pani.”
Suneetha 和 Vedhi - 2013 - Synthesis, Characterisation and Voltammetric behav DOI: 10.4028/www.scientific.net/AMR.678.258 -
confidence 0.8
“assigned to calcium carbonate”
Zhang 等 - 2021 - Effects of sticky rice addition on the properties DOI: 10.1186/s40494-020-00475-z -
Aromatic ring confidence 0.6
“Snippet: 'C=C stretching vibration of quinoid ring, 1481'.”
Patil 等 - 2011 - Studies on Fourier Transform Infrared Spectroscopy DOI: 10.1002/app.33600
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