ISSN:
1434-6079
Schlagwort(e):
34.50.Lf
;
36.40.+d
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract The reaction of O(3 P) with COR m clusters to produce electronically excited CO2 was studied under molecular beam conditions. It was found that the spectrum of the chemiluminescence produced extended from the blue all the way to the near infrared. The dependence of the total emission intensity on stagnation pressure was investigated for (CO) m as well as for COR m , R=He, Ne, Ar, N2, CO2 and SO2. The low pressure data indicate that small (CO) m polymers are more efficient than clusters of CO with other species in inducing the chemiluminescent reaction. The larger CO-rare gas clusters, however, exhibited larger reaction cross-sections than those of the CO polymers. Rare gas clusters ofm≧5, on the other hand have successively smaller cross sections for reaction. The reactivity of the CO2 and SO2 clusters seems to peak at aboutm=1 and then decreases for larger species. An equilibrium model for cluster formation was proposed and it was found capable of explaining and simulating the experimental observations. Contrary to what was reported from afterglow experiments, no barrier for the reaction was detected.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01436559
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