Interpenetrating As20 fullerene and Ni12 icosahedra in the onion-skin [As@Ni12@As20]3- ion

Melanie J. Moses, James C. Fettinger, Bryan W. Eichhorn

Research output: Contribution to journalArticlepeer-review

182 Scopus citations

Abstract

The [As@Ni12@AS20]3- ion was prepared from As73- and Ni(COD)2 in ethylenediamine solutions and isolated as the Bu4P+ salt (As, arsenic; Ni, nickel; COD, cyclooctadiene; Bu, butyl; P, phosphorus). The anion contains an icosahedral [Ni1212-AS)]3- fragment that resides at the center of an As20 dodecahedral (fullerene) cage to give an onion-skin-like [As@Ni12@As20]3- cluster with Ih point symmetry. The icosahedron and pentagonal dodecahedron are reciprocal platonic solids, and the 32 surface atoms form a dimpled geodesic sphere composed of 60 triangular faces. In the gas phase, the [As@Ni12@As20]3- ion sequentially loses all 21 As atoms to form a series of Ni12As21-x clusters where 0 ≤ x ≤ 21, inclusively.

Original languageEnglish
Pages (from-to)778-780
Number of pages3
JournalScience
Volume300
Issue number5620
DOIs
StatePublished - May 2 2003
Externally publishedYes

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