RuP4 is Hausmannite-like structured and crystallizes in the monoclinic P2_1/c space group. Ru(1) is bonded to two equivalent P(2) and four equivalent P(1) atoms to form RuP6 octahedra that share corners with four equivalent Ru(1)P6 octahedra, corners with four equivalent P(1)P2Ru2 tetrahedra, and corners with ten equivalent P(2)P3Ru tetrahedra. The corner-sharing octahedral tilt angles are 53°. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent Ru(1) and two equivalent P(2) atoms to form PP2Ru2 tetrahedra that share corners with two equivalent Ru(1)P6 octahedra, corners with six equivalent P(2)P3Ru tetrahedra, and corners with eight equivalent P(1)P2Ru2 tetrahedra. The corner-sharing octahedral tilt angles range from 64-71°. In the second P site, P(2) is bonded to one Ru(1), one P(2), and two equivalent P(1) atoms to form PP3Ru tetrahedra that share corners with five equivalent Ru(1)P6 octahedra, corners with three equivalent P(2)P3Ru tetrahedra, and corners with six equivalent P(1)P2Ru2 tetrahedra. The corner-sharing octahedral tilt angles range from 48-80°.
RuP4 is Hausmannite-like structured and crystallizes in the monoclinic P2_1/c space group. Ru(1) is bonded to two equivalent P(2) and four equivalent P(1) atoms to form RuP6 octahedra that share corners with four equivalent Ru(1)P6 octahedra, corners with four equivalent P(1)P2Ru2 tetrahedra, and corners with ten equivalent P(2)P3Ru tetrahedra. The corner-sharing octahedral tilt angles are 53°. Both Ru(1)-P(2) bond lengths are 2.43 Å. There are two shorter (2.37 Å) and two longer (2.38 Å) Ru(1)-P(1) bond lengths. There are two inequivalent P sites. In the first P site, P(1) is bonded to two equivalent Ru(1) and two equivalent P(2) atoms to form PP2Ru2 tetrahedra that share corners with two equivalent Ru(1)P6 octahedra, corners with six equivalent P(2)P3Ru tetrahedra, and corners with eight equivalent P(1)P2Ru2 tetrahedra. The corner-sharing octahedral tilt angles range from 64-71°. There is one shorter (2.17 Å) and one longer (2.19 Å) P(1)-P(2) bond length. In the second P site, P(2) is bonded to one Ru(1), one P(2), and two equivalent P(1) atoms to form PP3Ru tetrahedra that share corners with five equivalent Ru(1)P6 octahedra, corners with three equivalent P(2)P3Ru tetrahedra, and corners with six equivalent P(1)P2Ru2 tetrahedra. The corner-sharing octahedral tilt angles range from 48-80°. The P(2)-P(2) bond length is 2.30 Å.