Materials Data on Pr(AlZn)2 by Materials Project
Pr(ZnAl)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pr is bonded in a 8-coordinate geometry to eight equivalent Zn and eight equivalent Al atoms. All Pr–Zn bond lengths are 3.23 Å. All Pr–Al bond lengths are 3.47 Å. Zn is bonded in a 9-coordinate geometry to four equivalent Pr, one Zn, and four equivalent Al atoms. The Zn–Zn bond length is 2.47 Å. All Zn–Al bond lengths are 2.60 Å. Al is bonded to four equivalent Pr and four equivalent Zn atoms to form a mixture of distorted corner, edge, and face-sharing AlPr4Zn4 tetrahedra.