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Science 20 August 2004:
Vol. 305. no. 5687, pp. 1117 - 1118
DOI: 10.1126/science.1102500
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Perspectives

CHEMISTRY:
Zinc-Zinc Bonds: A New Frontier

Gerard Parkin

Some metals readily form bonds to other atoms of the same element in molecular compounds, but others, such as zinc, are not known to do so. In his Perspective, Parkin highlights the discovery of a molecular compound with a zinc-zinc bond by Resa et al. and places the discovery in the context of the other two elements in group 12 of the periodic table, cadmium and mercury.

The author is in the Department of Chemistry, Columbia University, New York, NY 10027, USA. E-mail: parkin{at}chem.columbia.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)