Materials Data on Eu(MnGe)2 by Materials Project
EuMn2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Eu is bonded in a 8-coordinate geometry to eight equivalent Mn and eight equivalent Ge atoms. All Eu–Mn bond lengths are 3.21 Å. All Eu–Ge bond lengths are 3.05 Å. Mn is bonded to four equivalent Eu and four equivalent Ge atoms to form a mixture of edge, face, and corner-sharing MnEu4Ge4 tetrahedra. All Mn–Ge bond lengths are 2.33 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Eu, four equivalent Mn, and one Ge atom. The Ge–Ge bond length is 2.54 Å.