Materials Data on CaNi4B by Materials Project

Abstract

CaNi4B crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Ca sites. In the first Ca site, Ca is bonded in a distorted hexagonal planar geometry to six equivalent Ni atoms. All Ca–Ni bond lengths are 2.90 Å. In the second Ca site, Ca is bonded in a 12-coordinate geometry to twelve equivalent Ni and six equivalent B atoms. All Ca–Ni bond lengths are 2.88 Å. All Ca–B bond lengths are 2.90 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 12-coordinate geometry to three equivalent Ca and six equivalent Ni atoms. All Ni–Ni bond lengths are 2.49 Å. In the second Ni site, Ni is bonded in a distorted L-shaped geometry to two equivalent Ca, two equivalent Ni, and two equivalent B atoms. Both Ni–B bond lengths are 2.02 Å. B is bonded in a 6-coordinate geometry to three equivalent Ca and six equivalent Ni atoms.