New Layered Boride NiPtB_2-<i>x</i> (<i>x</i> = 0.5) with a Ternary Derivative Structure of MoB.

ABSTRACT: A novel ternary boride, NiPtB_2-x (x = 0.5), was obtained by argon-arc melting of the elements followed by annealing at 750 °C. It exhibits a new structure type with the space group Imma (a = 2.9835(3) Å, b = 3.0470(3) Å, c = 15.3843(3) Å; Z = 4; single-crystal X-ray data) and displays distinct layers of condensed [BNi₆] and [BPt₆] (and [Pt₆]) trigonal prisms with mutually perpendicular axes. Atoms of Pt and Ni from adjacent layers interlink to form empty tetragonal pyramids and tetrahedra. Two boron atom positions form two orthogonal zigzag chains; however, one boron position exhibits a partial boron occupancy. Considering B-deficiency, the platinum boride substructure in NiPtB_2-x

SUBMITTER: Salamakha L 

PROVIDER: S-EPMC11815825 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature