Materials Data on HfAlPt2 by Materials Project

Abstract

HfPt2Al crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Hf is bonded in a 11-coordinate geometry to eight equivalent Pt and three equivalent Al atoms. There are two shorter (2.74 Å) and six longer (2.94 Å) Hf–Pt bond lengths. All Hf–Al bond lengths are 2.60 Å. Pt is bonded in a 1-coordinate geometry to four equivalent Hf, four equivalent Pt, and three equivalent Al atoms. There are one shorter (2.75 Å) and three longer (2.94 Å) Pt–Pt bond lengths. All Pt–Al bond lengths are 2.94 Å. Al is bonded in a 9-coordinate geometry to three equivalent Hf and six equivalent Pt atoms.