The fullerenes are the first "free-standing" elemental hollow cages identified by spectroscopy experiments and synthesized in the bulk. Here, we report experimental and theoretical evidence of hollow cages consisting of pure metal atoms, Au(n)(-) (n = 16-18); to our knowledge, free-standing metal hollow cages have not been previously detected in the laboratory. These hollow golden cages ("bucky gold") have an average diameter >5.5 A, which can easily accommodate one guest atom inside.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1482493 | PMC |
| http://dx.doi.org/10.1073/pnas.0600637103 | DOI Listing |
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