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Materials Data on Ba5Os3ClO15 by Materials Project

Ba5(OsO5)3Cl crystallizes in the hexagonal P6_3cm space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 11-coordinate geometry to nine O2- and two equivalent Cl1- atoms. There are a spread of Ba–O bond distances ranging from 2.79–3.27 Å. There are one shorter (3.46 Å) and one longer (3.65 Å) Ba–Cl bond lengths. In the second Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.76–2.83 Å. Os7+ is bonded in a distorted trigonal bipyramidal geometry to five O2- atoms. There is one shorter (1.75 Å) and four longer (1.87 Å) Os–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three Ba2+ and one Os7+ atom. In the second O2- site, O2- is bonded to three Ba2+ and one Os7+ atom to form a mixture of distorted edge and corner-sharing OBa3Os tetrahedra. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Ba2+, one Os7+, and one Cl1- atom. The O–Cl bond length is 3.47 Å. Cl1- is bonded in a 6-coordinate geometry to six equivalent Ba2+ and three equivalent O2- atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ba4Os6ClO18 by Materials Project

Ba4Os6O18Cl crystallizes in the cubic I23 space group. The structure is three-dimensional. Ba2+ is bonded in a 10-coordinate geometry to nine O2- and one Cl1- atom. There are a spread of Ba–O bond distances ranging from 2.69–2.92 Å. The Ba–Cl bond length is 3.04 Å. Os+4.83+ is bonded to six O2- atoms to form OsO6 octahedra that share corners with four equivalent OsO6 octahedra, corners with two equivalent ClBa4O6 tetrahedra, and an edgeedge with one OsO6 octahedra. The corner-sharing octahedral tilt angles are 44°. All Os–O bond lengths are 1.99 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ba2+ and two equivalent Os+4.83+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ba2+, two equivalent Os+4.83+, and one Cl1- atom. The O–Cl bond length is 3.22 Å. Cl1- is bonded to four equivalent Ba2+ and six equivalent O2- atoms to form distorted ClBa4O6 tetrahedra that share corners with twelve equivalent OsO6 octahedra. The corner-sharing octahedral tilt angles are 40°.

36 MATERIALS SCIENCE↗