Eu(IrGe)2 crystallizes in the tetragonal I4/mmm space group. Eu(1) is bonded in a 16-coordinate geometry to eight equivalent Ir(1) and eight equivalent Ge(1) atoms. Ir(1) is bonded to four equivalent Eu(1) and four equivalent Ge(1) atoms to form a mixture of distorted face, corner, and edge-sharing IrEu4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), four equivalent Ir(1), and one Ge(1) atom.
Eu(IrGe)2 crystallizes in the tetragonal I4/mmm space group. Eu(1) is bonded in a 16-coordinate geometry to eight equivalent Ir(1) and eight equivalent Ge(1) atoms. All Eu(1)-Ir(1) bond lengths are 3.36 Å. All Eu(1)-Ge(1) bond lengths are 3.25 Å. Ir(1) is bonded to four equivalent Eu(1) and four equivalent Ge(1) atoms to form a mixture of distorted face, corner, and edge-sharing IrEu4Ge4 tetrahedra. All Ir(1)-Ge(1) bond lengths are 2.46 Å. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), four equivalent Ir(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.67 Å.