title: [Pb9CdCdPb9]6-: a Zintl cluster anion with an unsupported cadmium-cadmium bond.
abstract: 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.
authors.affiliation: Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, UK OX1 3QR.
authors.forename: Binbin
authors.initials: B
authors.lastname: Zhou
authors.forename: Mark S
authors.initials: MS
authors.lastname: Denning
authors.forename: Thomas A D
authors.initials: TA
authors.lastname: Chapman
authors.forename: John E
authors.initials: JE
authors.lastname: McGrady
authors.forename: Jose M
authors.initials: JM
authors.lastname: Goicoechea