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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PuB2Os by Materials Project

PuOsB2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Pu3+ is bonded in a 8-coordinate geometry to eight equivalent B3- atoms. There are a spread of Pu–B bond distances ranging from 2.62–2.89 Å. Os3+ is bonded in a 6-coordinate geometry to six equivalent B3- atoms. There are a spread of Os–B bond distances ranging from 2.25–2.32 Å. B3- is bonded in a 9-coordinate geometry to four equivalent Pu3+, three equivalent Os3+, and two equivalent B3- atoms. There is one shorter (1.78 Å) and one longer (1.87 Å) B–B bond length.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PuB4Os by Materials Project

PuOsB4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Pu3+ is bonded in a 2-coordinate geometry to fourteen B+1.50- atoms. There are a spread of Pu–B bond distances ranging from 2.64–2.76 Å. Os3+ is bonded in a 10-coordinate geometry to ten B+1.50- atoms. There are a spread of Os–B bond distances ranging from 2.27–2.40 Å. There are three inequivalent B+1.50- sites. In the first B+1.50- site, B+1.50- is bonded in a 9-coordinate geometry to four equivalent Pu3+, two equivalent Os3+, and three B+1.50- atoms. There are a spread of B–B bond distances ranging from 1.76–1.89 Å. In the second B+1.50- site, B+1.50- is bonded in a 9-coordinate geometry to four equivalent Pu3+, two equivalent Os3+, and three B+1.50- atoms. The B–B bond length is 1.82 Å. In the third B+1.50- site, B+1.50- is bonded in a 9-coordinate geometry to two equivalent Pu3+, four equivalent Os3+, and three B+1.50- atoms. The B–B bond length is 1.75 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PuB2Os3 by Materials Project

PuOs3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Pu3+ is bonded to two equivalent Pu3+ and twelve equivalent Os1- atoms to form distorted PuPu2Os12 cuboctahedra that share corners with fourteen equivalent PuPu2Os12 cuboctahedra, edges with six equivalent PuPu2Os12 cuboctahedra, edges with twelve equivalent BOs6 pentagonal pyramids, faces with two equivalent PuPu2Os12 cuboctahedra, and faces with six equivalent BOs6 pentagonal pyramids. Both Pu–Pu bond lengths are 2.97 Å. All Pu–Os bond lengths are 3.17 Å. Os1- is bonded in a distorted square co-planar geometry to four equivalent Pu3+ and four equivalent B atoms. All Os–B bond lengths are 2.19 Å. B is bonded to six equivalent Os1- atoms to form distorted BOs6 pentagonal pyramids that share corners with six equivalent BOs6 pentagonal pyramids, edges with six equivalent PuPu2Os12 cuboctahedra, edges with three equivalent BOs6 pentagonal pyramids, faces with three equivalent PuPu2Os12 cuboctahedra, and faces with two equivalent BOs6 pentagonal pyramids.

36 MATERIALS SCIENCE↗