Mechanistical studies on the formation and destruction of carbon monoxide (CO), carbon dioxide (CO2), and carbon trioxide (CO3) in interstellar ice analog samples.
Phys Chem Chem Phys
; 12(16): 4032-50, 2010 Apr 28.
Article
en En
| MEDLINE
| ID: mdl-20379495
ABSTRACT
A series of ice mixtures containing carbon monoxide (CO), carbon dioxide (CO(2)), and molecular oxygen (O(2)) with varying carbon-to-oxygen ratios from 1 1.5 to 1 4 were irradiated at 10 K with energetic electrons to derive formation mechanisms and destruction pathways of carbon monoxide (CO), carbon dioxide (CO(2)), and carbon trioxide (CO(3)) in extraterrestrial, low temperature ices. Reactants and products were analyzed on line and in situ via absorption-reflection-absorption FTIR spectroscopy in the solid state, while the gas phase was sampled by a quadrupole mass spectrometer (QMS). Additionally, isotopically mixed ices consisting of (i) (13)CO ratio C(18)O ratio CO(2), (ii) CO(2)ratio C(18)O(2), and (iii) CO(2)ratio(18)O(2) were irradiated in order to derive mechanistical and kinetic information on the production and destruction pathways of the following species (i) (13)CO, C(18)O, CO(2), CO, (13)CO(2), (18)OCO, and (13)CO(3) (C(2v)), (ii) CO(2), C(18)O(2), CO, C(18)O, (18)OCO, CO(3) (C(2v)), OC(18)OO (C(2v)), OC(18)O(2) (C(2v)), (18)OCO(2) (C(2v)), (18)OC(18)OO (C(2v)), and C(18)O(3) (C(2v)), and (iii) CO(2), CO, (18)OCO, C(18)O, and C(18)O(2).
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Dióxido de Carbono
/
Monóxido de Carbono
/
Carbonatos
Idioma:
En
Revista:
Phys Chem Chem Phys
Asunto de la revista:
BIOFISICA
/
QUIMICA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Estados Unidos