La3Ge5 crystallizes in the orthorhombic Fdd2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 10-coordinate geometry to two equivalent Ge(3), four equivalent Ge(1), and four equivalent Ge(2) atoms. In the second La site, La(2) is bonded in a 10-coordinate geometry to two equivalent Ge(3), four equivalent Ge(1), and four equivalent Ge(2) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Ge(1) atoms. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent La(2), four equivalent La(1), one Ge(3), and two equivalent Ge(2) atoms. In the third Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Ge(1) atoms.
La3Ge5 crystallizes in the orthorhombic Fdd2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 10-coordinate geometry to two equivalent Ge(3), four equivalent Ge(1), and four equivalent Ge(2) atoms. There is one shorter (3.24 Å) and one longer (3.34 Å) La(1)-Ge(3) bond length. There are a spread of La(1)-Ge(1) bond distances ranging from 3.17-3.36 Å. There are a spread of La(1)-Ge(2) bond distances ranging from 3.14-3.48 Å. In the second La site, La(2) is bonded in a 10-coordinate geometry to two equivalent Ge(3), four equivalent Ge(1), and four equivalent Ge(2) atoms. Both La(2)-Ge(3) bond lengths are 3.20 Å. There are two shorter (3.20 Å) and two longer (3.30 Å) La(2)-Ge(1) bond lengths. There are two shorter (3.19 Å) and two longer (3.43 Å) La(2)-Ge(2) bond lengths. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Ge(1) atoms. Both Ge(3)-Ge(1) bond lengths are 2.55 Å. In the second Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent La(2), four equivalent La(1), one Ge(3), and two equivalent Ge(2) atoms. There is one shorter (2.50 Å) and one longer (2.63 Å) Ge(1)-Ge(2) bond length. In the third Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Ge(1) atoms.