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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Gd(CoB)4 by Materials Project

GdCo4B4 crystallizes in the tetragonal P4_2/nmc space group. The structure is three-dimensional. Gd3+ is bonded in a 12-coordinate geometry to twelve equivalent B3- atoms. There are eight shorter (2.88 Å) and four longer (2.90 Å) Gd–B bond lengths. Co+2.25+ is bonded in a 5-coordinate geometry to five equivalent B3- atoms. There are a spread of Co–B bond distances ranging from 2.05–2.11 Å. B3- is bonded in a 6-coordinate geometry to three equivalent Gd3+, five equivalent Co+2.25+, and one B3- atom. The B–B bond length is 1.75 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GdY(CoB)4 by Materials Project

GdY(CoB)4 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Gd3+ is bonded in a body-centered cubic geometry to eight equivalent B3- atoms. All Gd–B bond lengths are 2.91 Å. Y3+ is bonded in a body-centered cubic geometry to eight equivalent B3- atoms. All Y–B bond lengths are 2.89 Å. Co+1.50+ is bonded to four B3- atoms to form a mixture of edge and corner-sharing CoB4 tetrahedra. All Co–B bond lengths are 2.01 Å. There are two inequivalent B3- sites. In the first B3- site, B3- is bonded in a 4-coordinate geometry to four equivalent Gd3+ and four equivalent Co+1.50+ atoms. In the second B3- site, B3- is bonded in a 4-coordinate geometry to four equivalent Y3+ and four equivalent Co+1.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Gd(CoB)2 by Materials Project

GdCo2B2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Gd3+ is bonded in a body-centered cubic geometry to eight equivalent B3- atoms. All Gd–B bond lengths are 2.92 Å. Co+1.50+ is bonded to four equivalent B3- atoms to form a mixture of distorted edge and corner-sharing CoB4 tetrahedra. All Co–B bond lengths are 2.00 Å. B3- is bonded in a 4-coordinate geometry to four equivalent Gd3+ and four equivalent Co+1.50+ atoms.

36 MATERIALS SCIENCE↗