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Production and characterization of supersonic carbon cluster beams
Abstract
Laser vaporization of a substrate within the throat of a pulsed nozzle is used to generate a supersonic beam of carbon clusters. The neutral cluster beam is probed downstream by UV laser photoionization with time-of-flight mass analysis of the resulting photoions. Using graphite as the substrate, carbon clusters Cn for n=1–190 have been produced having a distinctly bimodal cluster size distribution: (i) Both even and odd clusters for Cn, 1≤n≤30; and (ii) only even clusters C2n, 20≤n≤90. The nature of the bimodal distribution, and the intensity alterations in the observed C+n signals are interpreted on the basis of cluster formation and stability arguments. Ionizing laser power dependences taken at several different photon energies are used to roughly bracket the carbon cluster ionization potentials, and, at high laser intensity, to observe the onset of multiphoton fragmentation. By treating the graphite rod with KOH, a greatly altered carbon cluster distribution with mixed carbon/potassium clusters of formula K2C2n is produced.
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Citations
Cites
Large Molecules in Carbon Vapor
Pitzer, K. S., & Clementi, E. (1959) · Journal of the American Chemical Society · doi:10.1021/ja01526a010 · Cited by 420
Hoffmann, R. (1966) · Tetrahedron · doi:10.1016/0040-4020(66)80020-0 · Cited by 363
Cited by
Georgakilas, V., Perman, J. A., Tucek, J., & Zboril, R. (2015) · Chemical Reviews · doi:10.1021/cr500304f · Cited by 2,147
Krätschmer, W., Fostiropoulos, K., & Huffman, D. R. (1990) · Chemical Physics Letters · doi:10.1016/0009-2614(90)87109-5 · Cited by 894
Structure, stability, and fragmentation of small carbon clusters
Raghavachari, K., & Binkley, J. S. (1987) · The Journal of Chemical Physics · doi:10.1063/1.453145 · Cited by 638
Self-assembly of the fullerenes
Smalley, R. E. (1992) · Accounts of Chemical Research · doi:10.1021/ar00015a001 · Cited by 538
Ups of buckminsterfullerene and other large clusters of carbon
Yang, S. H., Pettiette, C. L., Conceicao, J., Cheshnovsky, O., & Smalley, R. E. (1987) · Chemical Physics Letters · doi:10.1016/0009-2614(87)80548-1 · Cited by 441
Metadata
- Authors
- Rohlfing, E. A., Cox, D. M., & Kaldor, A.
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 1984-10-01
- Volume
- 81
- Issue
- 7
- Pages
- 3322-3330
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2083130939
- Cited by
- 893
- References
- 2
- FWCI
- 47.79
- Type
- journal article
- Language
- en
- Open access
- closed
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- Rohlfing, E. A., Cox, D. M., & Kaldor, A. (1984). Production and characterization of supersonic carbon cluster beams. The Journal of Chemical Physics. https://doi.org/10.1063/1.447994
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
