Rb3AuGe4 crystallizes in the orthorhombic Pmmn space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to two equivalent Au(1) and four equivalent Ge(2) atoms to form a mixture of distorted corner and edge-sharing RbGe4Au2 octahedra. The corner-sharing octahedral tilt angles are 24°. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one Au(1), two equivalent Ge(1), and two equivalent Ge(2) atoms. Au(1) is bonded in a 8-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), two equivalent Ge(1), and two equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 1-coordinate geometry to two equivalent Rb(2) and one Au(1) atom. In the second Ge site, Ge(2) is bonded in a 1-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Au(1) atom.
Rb3AuGe4 crystallizes in the orthorhombic Pmmn space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to two equivalent Au(1) and four equivalent Ge(2) atoms to form a mixture of distorted corner and edge-sharing RbGe4Au2 octahedra. The corner-sharing octahedral tilt angles are 24°. Both Rb(1)-Au(1) bond lengths are 3.55 Å. There are two shorter (3.66 Å) and two longer (3.78 Å) Rb(1)-Ge(2) bond lengths. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one Au(1), two equivalent Ge(1), and two equivalent Ge(2) atoms. The Rb(2)-Au(1) bond length is 3.43 Å. There is one shorter (3.59 Å) and one longer (3.66 Å) Rb(2)-Ge(1) bond length. Both Rb(2)-Ge(2) bond lengths are 3.67 Å. Au(1) is bonded in a 8-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), two equivalent Ge(1), and two equivalent Ge(2) atoms. Both Au(1)-Ge(1) bond lengths are 2.61 Å. Both Au(1)-Ge(2) bond lengths are 2.63 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 1-coordinate geometry to two equivalent Rb(2) and one Au(1) atom. In the second Ge site, Ge(2) is bonded in a 1-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Au(1) atom.