DOE OSTI2020
Dy2RuB6 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. there are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded in a 12-coordinate geometry to fourteen B2- atoms. There are a spread of Dy–B bond distances ranging from 2.73–2.81 Å. In the second Dy3+ site, Dy3+ is bonded to twelve B2- atoms to form a mixture of edge and face-sharing DyB12 cuboctahedra. There are a spread of Dy–B bond distances ranging from 2.60–2.63 Å. Ru6+ is bonded in a 10-coordinate geometry to ten B2- atoms. There are a spread of Ru–B bond distances ranging from 2.34–2.41 Å. There are six inequivalent B2- sites. In the first B2- site, B2- is bonded in a 9-coordinate geometry to four equivalent Dy3+, two equivalent Ru6+, and three B2- atoms. There are a spread of B–B bond distances ranging from 1.78–1.84 Å. In the second B2- site, B2- is bonded in a 9-coordinate geometry to four Dy3+, two equivalent Ru6+, and three B2- atoms. Both B–B bond lengths are 1.81 Å. In the third B2- site, B2- is bonded in a 9-coordinate geometry to four Dy3+, two equivalent Ru6+, and three B2- atoms. There is one shorter (1.73 Å) and one longer (1.88 Å) B–B bond length. In the fourth B2- site, B2- is bonded in a 9-coordinate geometry to four Dy3+, two equivalent Ru6+, and three B2- atoms. There is one shorter (1.79 Å) and one longer (1.80 Å) B–B bond length. In the fifth B2- site, B2- is bonded in a 9-coordinate geometry to four Dy3+, two equivalent Ru6+, and three B2- atoms. In the sixth B2- site, B2- is bonded in a 9-coordinate geometry to six Dy3+ and three B2- atoms. The B–B bond length is 2.12 Å.