YSr5Ni3O8–-a new nickel(I) oxide with a defect Sr2CuO3 structure
Abstract
A stoichiometric oxide of 3d9 nickel(I), YSr5Ni3O8, has been prepared through the hydrogen reduction of YSr5Ni3O11, resulting in a change from a tetragonal K2NiF4 type structure to an orthorhombic Sr2CuO3 arrangement in which 1/3 of the bridging oxygen atoms are missing from chains of apex-linked nickel oxide square planes.