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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CoReB by Materials Project

ReCoB crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Re is bonded in a 5-coordinate geometry to five equivalent B atoms. There are a spread of Re–B bond distances ranging from 2.35–2.40 Å. Co is bonded to four equivalent B atoms to form a mixture of distorted corner and edge-sharing CoB4 tetrahedra. There are a spread of Co–B bond distances ranging from 2.08–2.19 Å. B is bonded in a 9-coordinate geometry to five equivalent Re and four equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Co21(ReB3)2 by Materials Project

Co21(ReB3)2 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Re is bonded in a distorted tetrahedral geometry to four equivalent Co atoms. All Re–Co bond lengths are 2.38 Å. There are three inequivalent Co sites. In the first Co site, Co is bonded in a cuboctahedral geometry to twelve equivalent Co atoms. All Co–Co bond lengths are 2.50 Å. In the second Co site, Co is bonded in a 4-coordinate geometry to one Re and three equivalent B atoms. All Co–B bond lengths are 2.07 Å. In the third Co site, Co is bonded in a distorted bent 150 degrees geometry to one Co and two equivalent B atoms. Both Co–B bond lengths are 2.09 Å. B is bonded in a 8-coordinate geometry to eight Co atoms.

36 MATERIALS SCIENCE↗