New Layered Compounds with Honeycomb Ordering: Li(3)Ni(2)BiO(6), Li(3)NiM'BiO(6) (M' = Mg, Cu, Zn), and the Delafossite Ag(3)Ni(2)BiO(6).
Language
en
Article de revue
This item was published in
Inorganic Chemistry. 2012, vol. 51, n° 9, p. 5377-5385
American Chemical Society
English 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 ...Read more >
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.Read less <
English Keywords
Layered compounds
Delafossite
Solid state reactions
Crystal structure
Origin
Hal imported