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U.S. Department of Energy
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Fullerenes with metals inside

Journal Article · · Journal of Physical Chemistry; (United States)
DOI:https://doi.org/10.1021/j100173a002· OSTI ID:7274025
Fullerenes with a single lanthanum atom trapped on the inside of the carbon cage were produced by laser vaporization of a lanthanum oxide/graphite composite rod in a flow of argon gas at 1,200 C. When sublimed wit C{sub 60} and C{sub 70}, they formed an air-stable film containing principally LaC{sub 60}, LaC{sub 70}, LaC{sub 74}, and LaC{sub 82}. When dissolved in toluene and exposed to air, LaC{sub 82} was found to be uniquely stable. Evidence was also obtained for coalescence reactions between these fullerenes at high temperatures to form larger cages with as many as three lanthanum atoms inside. Indications have also been obtained for the successful production of KC{sub 60}, C{sub 59}B, and KC{sub 59}B where the boron has substituted for a carbon in the soccerball cage. The use of the {at} symbol is advocated for specifying such complex fullerenes as (K{at}C{sub 59}B).
OSTI ID:
7274025
Journal Information:
Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 95:20; ISSN 0022-3654; ISSN JPCHA
Country of Publication:
United States
Language:
English