title: Synthesis and characterization of [Ru@Ge12]3-: an endohedral 3-connected cluster.
abstract: The 12-vertex endohedral cluster [Ru@Ge12](3-) reveals an unprecedented D2d-symmetric 3-connected polyhedral geometry. The structure contrasts dramatically with the known deltahedral or approximately deltahedral geometries of [M@Pb12](2-) (M = Ni, Pd, Pt) and [Mn@Pb12](3-) and is a result of extensive delocalization of electron density from the transition-metal center onto the cage.
authors.affiliation: Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford , Oxford, OX1 3QR, United Kingdom.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Espinoza-Quintero
authors.forename: Jack C A
authors.initials: JC
authors.lastname: Duckworth
authors.forename: William K
authors.initials: WK
authors.lastname: Myers
authors.forename: John E
authors.initials: JE
authors.lastname: McGrady
authors.forename: Jose M
authors.initials: JM
authors.lastname: Goicoechea