Eu(ZnAl)2 crystallizes in the tetragonal I4/mmm space group. Eu(1) is bonded in a 16-coordinate geometry to eight equivalent Zn(1) and eight equivalent Al(1) atoms. Zn(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), one Zn(1), and four equivalent Al(1) atoms. Al(1) is bonded to four equivalent Eu(1) and four equivalent Zn(1) atoms to form a mixture of distorted face, corner, and edge-sharing AlEu4Zn4 tetrahedra.
Eu(ZnAl)2 crystallizes in the tetragonal I4/mmm space group. Eu(1) is bonded in a 16-coordinate geometry to eight equivalent Zn(1) and eight equivalent Al(1) atoms. All Eu(1)-Zn(1) bond lengths are 3.22 Å. All Eu(1)-Al(1) bond lengths are 3.48 Å. Zn(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), one Zn(1), and four equivalent Al(1) atoms. The Zn(1)-Zn(1) bond length is 2.49 Å. All Zn(1)-Al(1) bond lengths are 2.60 Å. Al(1) is bonded to four equivalent Eu(1) and four equivalent Zn(1) atoms to form a mixture of distorted face, corner, and edge-sharing AlEu4Zn4 tetrahedra.