From Wikipedia, the free encyclopedia
The Cs, D3h, and C2v isomers of carbon trioxide.
Carbon trioxide (CO3) is an unstable
oxide of carbon (an oxocarbon). There are possible isomers of
carbon trioxide, denoted Cs,
D3h, and C2v. The
C2v state has been shown by various studies 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
Further
reading
- Electronic structure and
spectroscopy of carbon trioxide
- Sobek V., Skalný J. D. (1993).
"A simple model of processes
in the drift region of negative corona discharge in a mixture of
air with halocarbons". Czechoslovak Journal of Physics
43 (8): 807. doi:10.1007/BF01589802. http://springerlink.com/content/n8qq2t7q21711481/.
- Pople J. A. , Seeger U., Seeger R., Schleyer P. v. R. (2004). "The structure of
carbonate". Journal of Computational Chemistry
1 (2): 199–203. doi:10.1002/jcc.540010215.
- Moll N. G., Clutter D. R.,
Thompson W. E. (1966). "Carbonate: Its Production, Infrared
Spectrum, and Structure Studied in a Matrix of Solid
CO2". The Journal of Chemical Physics
45 (12): 4469–4481. doi:10.1063/1.1727526.
- Gimarc B. M., Chou T. S. (1968).
"Geometry and Electronic Structure of Carbon Trioxide". The
Journal of Chemical Physics 49 (9):
4043–4047. doi:10.1063/1.1670715.
- DeMore W. B., Dede C. (1970).
"Pressure dependence of carbon trioxide formation in the gas-phase
reaction of O(1D) with carbon dioxide". Journal of Physical
Chemistry 74 (13): 2621–2625. doi:10.1021/j100707a006.
- Francisco J. S., Williams I. H.
(1985). "A theoretical study of the force field for carbon
trioxide". Chemical Physics 95 (3): 373.
doi:10.1016/0301-0104(85)80160-9.
| Oxocarbons |
|
| Common oxides |
|
|
| Exotic oxides |
|
|
| Compounds derived from
oxides |
|
|
Wikis
Quiz
Search
