(Ho2Cu4Br13)2(N2)3 crystallizes in the cubic Pn-3 space group. The structure consists of six ammonia atoms inside a Ho2Cu4Br13 framework. In the Ho2Cu4Br13 framework, Ho(1) is bonded to six equivalent Br(1) atoms to form HoBr6 octahedra that share corners with six equivalent Cu(1)Br4 tetrahedra. Cu(1) is bonded to one Br(2) and three equivalent Br(1) atoms to form CuBr4 tetrahedra that share corners with three equivalent Ho(1)Br6 octahedra and corners with three equivalent Cu(1)Br4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a bent 120 degrees geometry to one Ho(1) and one Cu(1) atom. In the second Br site, Br(2) is bonded in a tetrahedral geometry to four equivalent Cu(1) atoms.
(Ho2Cu4Br13)2(N2)3 crystallizes in the cubic Pn-3 space group. The structure consists of six ammonia atoms inside a Ho2Cu4Br13 framework. In the Ho2Cu4Br13 framework, Ho(1) is bonded to six equivalent Br(1) atoms to form HoBr6 octahedra that share corners with six equivalent Cu(1)Br4 tetrahedra. All Ho(1)-Br(1) bond lengths are 2.79 Å. Cu(1) is bonded to one Br(2) and three equivalent Br(1) atoms to form CuBr4 tetrahedra that share corners with three equivalent Ho(1)Br6 octahedra and corners with three equivalent Cu(1)Br4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. The Cu(1)-Br(2) bond length is 2.50 Å. All Cu(1)-Br(1) bond lengths are 2.40 Å. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a bent 120 degrees geometry to one Ho(1) and one Cu(1) atom. In the second Br site, Br(2) is bonded in a tetrahedral geometry to four equivalent Cu(1) atoms.