title: A five-membered Ru5 ring in a hexagonal La14 cage: the La14Cl20Ru5 structure.
abstract: The title compound features a five-membered Ru(5) ring embedded in a La(14) hexagonal wheel-like cage, an incommensurate combination of the two building units. A formal electron partition of (La(3+))(14)(Cl(-))(20)(Ru(5))(22-) results in a (Ru(5))(22-) ring isoelectronic to (Cd(5))(2-). However, computational studies show that there is significant electron back-donation from the Ru(5) ring to the La(14) wheel. This interaction strongly stabilizes the Ru(5) ring. The resistivity and magnetic susceptibility of the compound have also been investigated.
authors.affiliation: Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States. czheng@niu.edu
authors.forename: Chong
authors.initials: C
authors.lastname: Zheng
authors.forename: Jürgen
authors.initials: J
authors.lastname: Köhler
authors.forename: Hansjürgen
authors.initials: H
authors.lastname: Mattausch
authors.forename: Constantin
authors.initials: C
authors.lastname: Hoch
authors.forename: Arndt
authors.initials: A
authors.lastname: Simon