Carbon trioxide


Carbon trioxide
The Cs, D3h, and C2v isomers of carbon trioxide.

Carbon trioxide (CO3) is an unstable oxide of carbon (an oxocarbon). Three possible isomers of carbon trioxide, denoted Cs, D3h, and C2v, have been most studied by theoretical methods, and the C2v state has been shown to be the ground state of the molecule.[1][2]

Carbon trioxide should not be confused with the stable carbonate ion (CO32−).

Carbon trioxide can be produced, for example, in the drift zone of a negative corona discharge by reactions between carbon dioxide (CO2) and the atomic oxygen (O) created from molecular oxygen by free electrons in the plasma.[3]

Another reported method is photolysis of ozone O3 dissolved in liquid CO2, or in CO2/SF6 mixtures at -45°C, irradiated with light of 2537 Å. The formation of CO3 is inferred but it appears to decay spontaneously by the route 2CO3 → 2CO2 + O2 with a lifetime much shorter than 1 minute.[4]

Carbon trioxide can be made by blowing ozone at dry ice (solid CO2), and it has also been detected in reactions between carbon monoxide (CO) and molecular oxygen (O2).

References

  1. ^ Tim Kowalczyk, Electronic structure and spectroscopy of carbon trioxide
  2. ^ Kowalczyk, T; Krylov, AI (Aug 2007). "Electronic structure of carbon trioxide and vibronic interactions involving Jahn-Teller states". J. Phys. Chem. A 111 (33): 8271–8276. doi:10.1021/jp073627d. ISSN 1089-5639. PMID 17661455. 
  3. ^ Sabin, J. R; Kim, H (1971). "A theoretical study of the structure and properties of carbon trioxide". Chemical Physics Letters 11 (5,): 593–597. Bibcode 1971CPL....11..593S. doi:10.1016/0009-2614(71)87010-0. 
  4. ^ DeMore W. B., Jacobsen C. W. (1969). "Formation of carbon trioxide in the photolysis of ozone in liquid carbon dioxide". Journal of Physical Chemistry 73 (9): 2935–2938. doi:10.1021/j100843a026. 

Further reading


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Carbon — (), but as most compounds with multiple single bonded oxygens on a single carbon it is unstable.] Cyanide (CN–), has a similar structure, but behaves much like a halide ion (pseudohalogen). For example it can form the nitride cyanogen molecule… …   Wikipedia

  • Carbon dioxide — Carbon dioxide …   Wikipedia

  • Carbon monoxide — chembox Name = Carbon monoxide ImageFileL1 = Carbon monoxide 2D.svg ImageSizeL1 = 100px ImageNameL1 = Structure of the carbon monoxide molecule ImageFileR1 = Carbon monoxide 3D vdW.png ImageSizeR1 = 120px ImageNameR1 = Space filling model of the… …   Wikipedia

  • Carbon suboxide — Chembox new Name = Carbon suboxide ImageFile = Carbon suboxide 2D dimensions.png ImageName = Structure of carbon suboxide ImageFile1 = Carbon suboxide 3D vdW.png ImageName1 = Space filling model of carbon suboxide IUPACName = propadiene 1,3 dione …   Wikipedia

  • Compounds of carbon — Scientists once thought that organic compounds are or could only be created by living organisms. Over time, human have learned how to synthesize organic compounds. There is an immense number of distinct compounds that contain carbon atoms. Some… …   Wikipedia

  • Uranium trioxide — IUPAC name Uranium trioxide Uranium(VI) oxide …   Wikipedia

  • Rhenium trioxide — Chembox new ImageFile = Rhenium trioxide 3D vdW.png ImageSize = IUPACName = OtherNames = Section1 = Chembox Identifiers CASNo = PubChem = SMILES = Section2 = Chembox Properties Formula = ReO3 MolarMass = 234.21 g mol−1 Appearance = Density =… …   Wikipedia

  • CO3 — Mögliche Strukturen des CO3 nach ihrer Geometrie: Cs , D3h und C2v Kohlenstofftrioxid (CO3) ist ein instabiles Reaktionsprodukt von Kohlenstoffdioxid, CO2, und atomarem Sauerstoff, O.[1] Es unterscheidet sich von dem Carbonat Anion CO32−. Auch… …   Deutsch Wikipedia

  • Kohlenstofftrioxid — Mögliche Strukturen des CO3 nach ihrer Geometrie: Cs , D3h und C2v Kohlenstofftrioxid (CO3) ist ein instabiles Reaktionsprodukt von Kohlenstoffdioxid, CO2, und atomarem Sauerstoff, O.[1] Es unterscheidet sich von dem Carbonat Anion CO …   Deutsch Wikipedia

  • Trioxyde de carbone — Les isomères Cs, D3h et C2v du trioxyde de carbone. Le trioxyde de carbone (CO3) est un oxyde instable de carbone. Il y a trois isomères possibles pour le trioxyde de carbone de symétrie Cs, D3h ou C2v. Le CO3 C2v a été montré par plusieurs… …   Wikipédia en Français


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.