Mg2BN2Br crystallizes in the monoclinic C2/c space group. Mg(1) is bonded in a 5-coordinate geometry to three equivalent N(1) and two equivalent Br(1) atoms. B(1) is bonded in a linear geometry to two equivalent N(1) atoms. N(1) is bonded to three equivalent Mg(1) and one B(1) atom to form a mixture of corner and edge-sharing NMg3B tetrahedra. Br(1) is bonded in a 4-coordinate geometry to four equivalent Mg(1) atoms.
Mg2BN2Br crystallizes in the monoclinic C2/c space group. Mg(1) is bonded in a 5-coordinate geometry to three equivalent N(1) and two equivalent Br(1) atoms. There are a spread of Mg(1)-N(1) bond distances ranging from 2.09-2.12 Å. There is one shorter (2.74 Å) and one longer (3.05 Å) Mg(1)-Br(1) bond length. B(1) is bonded in a linear geometry to two equivalent N(1) atoms. Both B(1)-N(1) bond lengths are 1.35 Å. N(1) is bonded to three equivalent Mg(1) and one B(1) atom to form a mixture of corner and edge-sharing NMg3B tetrahedra. Br(1) is bonded in a 4-coordinate geometry to four equivalent Mg(1) atoms.