La4Ru6O19 crystallizes in the cubic I23 space group. La(1) is bonded in a 10-coordinate geometry to one O(2), three equivalent O(1), and six equivalent O(3) atoms. Ru(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form a mixture of edge and corner-sharing RuO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ru(1) atoms. In the second O site, O(2) is bonded in a tetrahedral geometry to four equivalent La(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent La(1) and two equivalent Ru(1) atoms.
La4Ru6O19 crystallizes in the cubic I23 space group. La(1) is bonded in a 10-coordinate geometry to one O(2), three equivalent O(1), and six equivalent O(3) atoms. The La(1)-O(2) bond length is 2.51 Å. All La(1)-O(1) bond lengths are 2.55 Å. There are three shorter (2.57 Å) and three longer (3.00 Å) La(1)-O(3) bond lengths. Ru(1) is bonded to two equivalent O(1) and four equivalent O(3) atoms to form a mixture of edge and corner-sharing RuO6 octahedra. The corner-sharing octahedral tilt angles are 53°. Both Ru(1)-O(1) bond lengths are 2.02 Å. There are two shorter (1.96 Å) and two longer (1.98 Å) Ru(1)-O(3) bond lengths. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent La(1) and two equivalent Ru(1) atoms. In the second O site, O(2) is bonded in a tetrahedral geometry to four equivalent La(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent La(1) and two equivalent Ru(1) atoms.