Rb5GeP3 crystallizes in the orthorhombic Pnma space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 3-coordinate geometry to three equivalent P(3) atoms. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to two equivalent Ge(1), one P(2), two equivalent P(1), and two equivalent P(3) atoms. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. In the fourth Rb site, Rb(4) is bonded to one P(1), one P(3), and two equivalent P(2) atoms to form distorted corner-sharing RbP4 tetrahedra. In the fifth Rb site, Rb(5) is bonded in a 7-coordinate geometry to two equivalent Ge(1), two equivalent P(1), and three equivalent P(2) atoms. Ge(1) is bonded in a distorted trigonal planar geometry to two equivalent Rb(2), two equivalent Rb(5), one P(1), one P(2), and one P(3) atom. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to one Rb(4), two equivalent Rb(2), two equivalent Rb(3), three equivalent Rb(1), and one Ge(1) atom. In the second P site, P(1) is bonded in a 7-coordinate geometry to one Rb(3), one Rb(4), two equivalent Rb(2), two equivalent Rb(5), and one Ge(1) atom. In the third P site, P(2) is bonded in a 9-coordinate geometry to one Rb(2), two equivalent Rb(3), two equivalent Rb(4), three equivalent Rb(5), and one Ge(1) atom.
Rb5GeP3 crystallizes in the orthorhombic Pnma space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 3-coordinate geometry to three equivalent P(3) atoms. There are two shorter (3.63 Å) and one longer (3.64 Å) Rb(1)-P(3) bond length. In the second Rb site, Rb(2) is bonded in a 7-coordinate geometry to two equivalent Ge(1), one P(2), two equivalent P(1), and two equivalent P(3) atoms. Both Rb(2)-Ge(1) bond lengths are 3.56 Å. The Rb(2)-P(2) bond length is 3.42 Å. Both Rb(2)-P(1) bond lengths are 3.42 Å. Both Rb(2)-P(3) bond lengths are 3.73 Å. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one P(1), two equivalent P(2), and two equivalent P(3) atoms. The Rb(3)-P(1) bond length is 3.60 Å. Both Rb(3)-P(2) bond lengths are 3.59 Å. Both Rb(3)-P(3) bond lengths are 3.63 Å. In the fourth Rb site, Rb(4) is bonded to one P(1), one P(3), and two equivalent P(2) atoms to form distorted corner-sharing RbP4 tetrahedra. The Rb(4)-P(1) bond length is 3.50 Å. The Rb(4)-P(3) bond length is 3.45 Å. Both Rb(4)-P(2) bond lengths are 3.49 Å. In the fifth Rb site, Rb(5) is bonded in a 7-coordinate geometry to two equivalent Ge(1), two equivalent P(1), and three equivalent P(2) atoms. Both Rb(5)-Ge(1) bond lengths are 3.62 Å. Both Rb(5)-P(1) bond lengths are 3.56 Å. There is one shorter (3.49 Å) and two longer (3.60 Å) Rb(5)-P(2) bond lengths. Ge(1) is bonded in a distorted trigonal planar geometry to two equivalent Rb(2), two equivalent Rb(5), one P(1), one P(2), and one P(3) atom. The Ge(1)-P(1) bond length is 2.28 Å. The Ge(1)-P(2) bond length is 2.26 Å. The Ge(1)-P(3) bond length is 2.28 Å. There are three inequivalent P sites. In the first P site, P(3) is bonded in a 9-coordinate geometry to one Rb(4), two equivalent Rb(2), two equivalent Rb(3), three equivalent Rb(1), and one Ge(1) atom. In the second P site, P(1) is bonded in a 7-coordinate geometry to one Rb(3), one Rb(4), two equivalent Rb(2), two equivalent Rb(5), and one Ge(1) atom. In the third P site, P(2) is bonded in a 9-coordinate geometry to one Rb(2), two equivalent Rb(3), two equivalent Rb(4), three equivalent Rb(5), and one Ge(1) atom.