Crystal and Molecular Structure of a Pentagonal Dodecahedrane

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Science  06 Feb 1981:
Vol. 211, Issue 4482, pp. 575-576
DOI: 10.1126/science.211.4482.575


The successful synthesis of a pentagonal dodecahedrane molecule has been achieved. Obtained by a sequence of 20 stereochemically controlled steps beginning with the readily available cyclopentadienide anion, the 1,16-dimethyl derivative has D3d symmetry and unusual physical properties. The x-ray crystal structure shows that the alkyl groups cause only small distortions from pure dodecahedral symmetry.