title: Unique [core+two] structure and optical property of a dodeca-ligated undecagold cluster: critical contribution of the exo gold atoms to the electronic structure.
abstract: A novel dodeca-ligated undecagold cluster having a nonagold core plus two exo-attached gold atoms was synthesized. Unlike the conventional icosahedron-based "core-only" isomer, the [9+2] cluster showed an intense visible absorption band. Theoretical calculation showed the involvement of the exo gold atoms in the generation of the unique electronic structure.
authors.affiliation: Faculty of Environmental Earth Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan.
authors.forename: Yukatsu
authors.initials: Y
authors.lastname: Shichibu
authors.forename: Yutaro
authors.initials: Y
authors.lastname: Kamei
authors.forename: Katsuaki
authors.initials: K
authors.lastname: Konishi