| Autor: |
B. C. Guo, A. W. Castleman, B. D. May, Z.Y. Chert, S. F. Cartier |
| Rok vydání: |
1992 |
| Předmět: |
|
| Zdroj: |
Chemical Physics Letters. 198:118-122 |
| ISSN: |
0009-2614 |
| DOI: |
10.1016/0009-2614(92)90058-u |
| Popis: |
Two reaction channels have been found when light hydrocarbon gases are introduced into the carrier gas of a plasma reactor coupled with a laser vaporization source employing a metal rod assembly. These involve dehydrogenation to produce pure carbon clusters, and formation of metal-carbon bonds to produce metal-carbon clusters, MmCn−. Using a time-of-flight mass spectrometer system coupled with a laser vaporization plasma source, experiments are conducted to investigate the optimum conditions for selecting the desired reaction channels. Varying the conditions of the plasma reactor results in a striking difference in the species produced as evidenced in the recorded mass spectra. That is, either a pure carbon cluster series or a metal-carbon cluster series MmCn+ (with a magic peak at MgC12+) is obtained. These studies demonstrate an alternative way to produce beams of carbon clusters, and also have led to the further development of a method useful for investigating the properties of metal-carbon clusters. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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