BaAu5Ge2 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 15-coordinate geometry to two equivalent Au(3), six equivalent Au(1), six equivalent Au(2), and one Ge(2) atom. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 2-coordinate geometry to three equivalent Ba(1), two equivalent Au(2), one Ge(2), and two equivalent Ge(1) atoms. In the second Au site, Au(2) is bonded in a 10-coordinate geometry to three equivalent Ba(1), one Au(2), two equivalent Au(1), two equivalent Au(3), one Ge(1), and one Ge(2) atom. In the third Au site, Au(3) is bonded in a 2-coordinate geometry to two equivalent Ba(1), four equivalent Au(2), one Ge(2), and two equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Au(2), two equivalent Au(3), and four equivalent Au(1) atoms. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to one Ba(1), one Au(3), two equivalent Au(1), and two equivalent Au(2) atoms.
BaAu5Ge2 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 15-coordinate geometry to two equivalent Au(3), six equivalent Au(1), six equivalent Au(2), and one Ge(2) atom. Both Ba(1)-Au(3) bond lengths are 3.66 Å. There are a spread of Ba(1)-Au(1) bond distances ranging from 3.59-3.67 Å. There are a spread of Ba(1)-Au(2) bond distances ranging from 3.50-3.66 Å. The Ba(1)-Ge(2) bond length is 3.55 Å. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 2-coordinate geometry to three equivalent Ba(1), two equivalent Au(2), one Ge(2), and two equivalent Ge(1) atoms. There is one shorter (2.95 Å) and one longer (2.99 Å) Au(1)-Au(2) bond length. The Au(1)-Ge(2) bond length is 2.65 Å. There is one shorter (2.50 Å) and one longer (2.96 Å) Au(1)-Ge(1) bond length. In the second Au site, Au(2) is bonded in a 10-coordinate geometry to three equivalent Ba(1), one Au(2), two equivalent Au(1), two equivalent Au(3), one Ge(1), and one Ge(2) atom. The Au(2)-Au(2) bond length is 2.93 Å. There is one shorter (2.85 Å) and one longer (3.07 Å) Au(2)-Au(3) bond length. The Au(2)-Ge(1) bond length is 2.69 Å. The Au(2)-Ge(2) bond length is 2.49 Å. In the third Au site, Au(3) is bonded in a 2-coordinate geometry to two equivalent Ba(1), four equivalent Au(2), one Ge(2), and two equivalent Ge(1) atoms. The Au(3)-Ge(2) bond length is 2.52 Å. There is one shorter (2.58 Å) and one longer (3.00 Å) Au(3)-Ge(1) bond length. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Au(2), two equivalent Au(3), and four equivalent Au(1) atoms. In the second Ge site, Ge(2) is bonded in a 5-coordinate geometry to one Ba(1), one Au(3), two equivalent Au(1), and two equivalent Au(2) atoms.