title: New layered compounds with honeycomb ordering: Li3Ni2BiO6, Li3NiM'BiO6 (M' = Mg, Cu, Zn), and the delafossite Ag3Ni2BiO6.
abstract: The new layered compound Li(3)Ni(2)BiO(6) has been prepared by a solid-state reaction. It crystallizes in the monoclinic C2/m space group; its lamellar structure is characterized by a honeycomb ordering between Ni(2+) and Bi(5+) within the slabs, while Li(+) ions occupy octahedral sites in the interslab space. Stacking defects weakly alter the XRD pattern. By substitution of half of the nickel ions, the new phases Li(3)NiM'BiO(6) (M' = Mg, Cu, Zn) isostructural with Li(3)Ni(2)BiO(6) have been synthesized under similar conditions. All these compounds demonstrate paramagnetic behavior at high temperature, and Li(3)Ni(2)BiO(6) exhibits an antiferromagnetic ordering at 5.5 K. By topotactic molten salt ionic exchange, the new delafossite compound Ag(3)Ni(2)BiO(6) has been also obtained and characterized.
authors.affiliation: Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA.
authors.forename: Romain
authors.initials: R
authors.lastname: Berthelot
authors.forename: Whitney
authors.initials: W
authors.lastname: Schmidt
authors.forename: Sean
authors.initials: S
authors.lastname: Muir
authors.forename: James
authors.initials: J
authors.lastname: Eilertsen
authors.forename: Laetitia
authors.initials: L
authors.lastname: Etienne
authors.forename: A W
authors.initials: AW
authors.lastname: Sleight
authors.forename: M A
authors.initials: MA
authors.lastname: Subramanian