Carbon dioxide — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Carbon dioxide tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Characteristic FTIR peaks for Carbon dioxide
| Wavenumber (cm⁻¹) | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| 2343 | 4 | 3 | 0.9 |
| 2340 | 4 | 3 | 0.9 |
| 2400 | 3 | 3 | 0.9 |
| 2360 | 3 | 3 | 0.9 |
| 2349 | 3 | 2 | 1.0 |
| 2380 | 2 | 2 | 0.9 |
| 2345 | 2 | 1 | 0.95 |
| 2220 | 1 | 1 | 1.0 |
| 2037 | 1 | 1 | 1.0 |
| 2342 | 1 | 1 | 0.9 |
| 2355 | 1 | 1 | 0.9 |
| 750 | 1 | 1 | 0.9 |
| 667 | 1 | 1 | 0.9 |
| 2336 | 1 | 1 | 0.9 |
| 659 | 1 | 1 | 0.9 |
| 3692 | 1 | 1 | 0.9 |
| 2357 | 1 | 1 | 0.9 |
| 656 | 1 | 1 | 0.9 |
| 669 | 1 | 1 | 0.9 |
| 2359 | 1 | 1 | 0.9 |
| 2352 | 1 | 1 | 0.9 |
| 1430 | 1 | 1 | 0.9 |
| 2347 | 1 | 1 | 0.9 |
| 2300 | 1 | 1 | 0.8 |
| 677 | 1 | 1 | 0.6 |
| 2250 | 1 | 1 | 0.6 |
| 3491 | 1 | 1 | 0.5 |
| 1029 | 1 | 0 | 0.9 |
| 2341 | 1 | 0 | 0.9 |
| 2310 | 1 | 0 | 0.9 |
Showing the 30 best-supported peaks of 31 total for Carbon dioxide.
Literature behind these assignments
-
2349 cm⁻¹ confidence 1.0
“Explicit assignment in text: 'Carbon dioxide Antisymmetric stretching 2349'”
Gordon 和 Sephton - 2016 - Organic Matter Detection on Mars by Pyrolysis-FTIR DOI: 10.1089/ast.2016.1485 -
2037 cm⁻¹ confidence 1.0
“CO2 at 2037 cm-1”
Starowicz 等 - 2014 - Alumina-based nanoparticles obtained by anodic dis DOI: 10.1007/s10008-014-2447-6 -
2345 cm⁻¹ confidence 0.95
“Explicit assignment: 'absorption at 2345 due to CO2'”
Marie 等 - 2012 - PEM Anchorage on Titanium Using Catechol Grafting DOI: 10.1371/journal.pone.0050326 -
2347 cm⁻¹ confidence 0.9
“Explicit assignment: CO2 peak at 2347 cm-1.”
El-Bahy 等 - 2022 - CO oxidation and 4-nitrophenol reduction over ceri DOI: 10.1016/j.jre.2021.07.009 -
2360 cm⁻¹ confidence 0.9
“Explicitly stated: 'region of 2360 cm-1, characteristic of CO2'.”
Savi 等 - 2020 - Chemical characterization and antioxidant of polys DOI: 10.1016/j.jksus.2018.09.002 -
1430 cm⁻¹ confidence 0.9
“Explicit assignment: 'doublet near 1430cm-1' for CO2”
Vetere 等 - 2011 - Solubility of H2O and CO2 in shoshonitic melts at DOI: 10.1016/j.jvolgeores.2011.03.002 -
2380 cm⁻¹ confidence 0.9
“Explicit assignment.”
Afqir 等 - 2018 - Structural, electric and dielectric properties of DOI: 10.2298/PAC1801072A -
2352 cm⁻¹ confidence 0.9
“Stretching vibration of O=C=O resulted in IR band at 2352 cm-1.”
Al-Senani 等 - 2021 - Fabrication of Cu1.5Mn1.5O4 Nanoparticles Using On DOI: 10.3390/app11052034
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