title: Selective synthesis of Co8S15 cluster in bowl-shaped template of the pentaaryl[60]fullerene ligand.
abstract: A cobalt-sulfur cluster Co8S15 with molecular formula of (C60Ar5)-Co8S15(n)Bu2-(C60Ar5) (Ar = 4-(t)BuC6H4) was selectively synthesized from a pentaaryl[60]fullerene cobalt trisulfide complex, (η(5)-C60Ar5)CoS3. The bowl-shaped steric templating fullerene ligand, as well as the metastable cobalt trisulfide moiety, played important roles in the exclusive cluster formation. X-ray crystallography, as well as electrochemical, time-resolved photophysical, and magnetic, measurements revealed a mixed-valence cluster with six cobalt(III) and two high-spin cobalt(II) centers showing reversible redox behavior and photoinduced charge separation.
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, Hongo, Tokyo 113-0033, Japan.
authors.forename: Masashi
authors.initials: M
authors.lastname: Maruyama
authors.forename: Kenta
authors.initials: K
authors.lastname: Imoto
authors.forename: Matthias
authors.initials: M
authors.lastname: König
authors.forename: Dirk M
authors.initials: DM
authors.lastname: Guldi
authors.forename: Shin-Ichi
authors.initials: S
authors.lastname: Ohkoshi
authors.forename: Eiichi
authors.initials: E
authors.lastname: Nakamura
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Matsuo
mesh_terms: D060326:Chemistry Techniques, Synthetic; D003035:Cobalt / Q000737:chemistry*; D004563:Electrochemistry; D037741:Fullerenes / Q000737:chemistry*; D008024:Ligands; D060328:Magnetic Phenomena; D008958:Models, Molecular; D008968:Molecular Conformation; D013455:Sulfur / Q000737:chemistry*
chemical_list: D037741:Fullerenes; D008024:Ligands; D003035:Cobalt; D013455:Sulfur; C069837:fullerene C60