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Communication

Chem. Commun., 2009, 7221 - 7223, DOI: 10.1039/b917185a

[Pb9CdCdPb9]6-: A Zintl cluster anion with an unsupported cadmium–cadmium bond

Binbin Zhou, Mark S. Denning, Thomas A. D. Chapman, John E. McGrady and Jose M. Goicoechea

Reaction of an ethylenediamine solution of the intermetallic Zintl phase K4Pb9 with dimesitylcadmium yielded the dimeric Zintl ion [Pb9Cd–CdPb9]6- in low crystalline yield. The cluster anion exhibits a Cd–Cd bond and was structurally characterised by single crystal X-ray diffraction in [K(2,2,2-crypt)]6[Cd2Pb18]·2en (1). DFT was also used to explore the bonding in the hexa-anionic cluster.

Graphical abstract image for this article (ID: b917185a)