Generation and reactivity of yttrium-carbon cluster ions

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:210645

Kan, S Z; Lee, S A; Freiser, B S ^[1]

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1. Purdue Univ., West Lafayette, IN (United States)

In 1992, Castleman and coworkers reported the production of the ionic transition metal-carbon clusters, M{sub 8}C{sub 12}{sup +} (M=Ti,V, Zr and Hf). Like the observations of pure carbon clusters such as C{sub 60} and C{sub 70}, these metal-carbon clusters were observed as {open_quotes}magic{close_quotes} peaks in the mass spectra obtained from a supersonic expansion ion source. These intense peaks are indicative of the high stability of these clusters which are proposed to have symmetrical, cagelike structures with the geometry of a pentagonal dodecahedron. M{sub 8}C{sub 12}{sup +} species are thus termed metallo-carbohedrenes, or met-cars for short. Like fullerenes, met-cars are of both fundamental interest and hold promise as a new class of important materials and, hence, have become the focus of both theoretical and experimental investigations. Along with these species, metal-carbon clusters of other stoichiometries such as Ti{sub 8}C{sub 11}{sup +}, Ti{sub 8}C{sub 13}{sup +}, Ti{sub 7}C{sub 12}, V{sub 14}C{sub 13}{sup +}, V{sub 14}C{sub 12}{sup +}, and Nb{sub 4}C{sub 4}{sup +} have also been examined. Here, the authors report on the yttrium-carb system in which a broad range of metal-carbon cluster ions are observed.

• OSTI ID: 210645
• Report Number(s): CONF-9505261--
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ATOMIC CLUSTERS
CATIONS
CHEMICAL REACTIONS
MASS SPECTROSCOPY
ORGANIC BROMINE COMPOUNDS
WATER
YTTERBIUM CARBIDES