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Materials Data on Mn2(Co7B2)3 by Materials Project

Mn2(Co7B2)3 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Mn is bonded in a tetrahedral geometry to four equivalent Co atoms. All Mn–Co bond lengths are 2.32 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 2.48 Å. In the second Co site, Co is bonded to one Mn and three equivalent B atoms to form a mixture of corner and edge-sharing CoMnB3 tetrahedra. 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 2.08 Å. B is bonded in a 8-coordinate geometry to eight Co atoms.

36 MATERIALS SCIENCE↗