What absorbs at 1483 cm⁻¹ in an FTIR spectrum?
A band near 1483 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 4 cited sources
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| Ring structure | 2 | 2 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| C=n | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
Alkyl C-H confidence 1.0
“The stretching and bending vibrations of six-membered rings cm-1, occurred at 1578-1579, 1483, and 1456 whereas bands attributed to vibrations of C-H cm-1 arose at 1483, 1456, 1247, and 1170 (rocking) [34];”
Benjamin Ortega-Lazcano 等 - 2021 - Study of Pigments from the Colonial Convent of Act DOI: 10.3390/min11080852 -
Alkene (C=C) confidence 1.0
“stretching 1483cm-1, 1210cm-1 spectrum of PANI has shown C=C stretching in the quinonoid ring at 1548 cm-1, C=N stretching vibration at C-N stretching vibrations of diverse benzenoid at and C-H bending”
Kukulski 等 - 2020 - A Polymeric Composite Material (rGOPANI) for Acid DOI: 10.3390/polym12051051 -
Ring structure confidence 1.0
“The two bands at 1333cm-1 first were both assigned to the ring stretch, the one coupled with OH and the 1483 and 1373cm-1 other one with in-plane bending mode (Edwards et al., 2003).”
Lorenz 等 - 2022 - Survival of Xanthoria parietina in simulated space DOI: 10.1017/S1473550422000076 -
Ring structure confidence 1.0
“1523 109 1559 1517 92 1525.0 vs Ring stretch δ 1483 1450 14 1499 1459 12 1448.0 w asCH 3”
Structure, Spectra and Photochemistry of 2-Amino-4-Methylthiazole: FTIR Matrix Isolation and Theoretical Studies DOI: 10.3390/molecules27123897
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