Gd6CoBr10 crystallizes in the triclinic P-1 space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one Co(1), one Br(2), one Br(4), one Br(5), and two equivalent Br(3) atoms to form a mixture of corner and edge-sharing GdCoBr5 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second Gd site, Gd(2) is bonded to one Co(1), one Br(3), one Br(4), one Br(5), and two equivalent Br(1) atoms to form a mixture of corner and edge-sharing GdCoBr5 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the third Gd site, Gd(3) is bonded to one Co(1), one Br(1), one Br(3), one Br(4), and two equivalent Br(2) atoms to form a mixture of corner and edge-sharing GdCoBr5 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. Co(1) is bonded in an octahedral geometry to two equivalent Gd(1), two equivalent Gd(2), and two equivalent Gd(3) atoms. There are five inequivalent Br sites. In the first Br site, Br(1) is bonded in a T-shaped geometry to one Gd(3) and two equivalent Gd(2) atoms. In the second Br site, Br(2) is bonded in a T-shaped geometry to one Gd(1) and two equivalent Gd(3) atoms. In the third Br site, Br(3) is bonded in a see-saw-like geometry to one Gd(2), one Gd(3), and two equivalent Gd(1) atoms. In the fourth Br site, Br(4) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one Gd(3) atom. In the fifth Br site, Br(5) is bonded in an L-shaped geometry to one Gd(1) and one Gd(2) atom.
Gd6CoBr10 crystallizes in the triclinic P-1 space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded to one Co(1), one Br(2), one Br(4), one Br(5), and two equivalent Br(3) atoms to form a mixture of corner and edge-sharing GdCoBr5 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. The Gd(1)-Co(1) bond length is 2.67 Å. The Gd(1)-Br(2) bond length is 2.93 Å. The Gd(1)-Br(4) bond length is 3.09 Å. The Gd(1)-Br(5) bond length is 2.82 Å. There is one shorter (3.03 Å) and one longer (3.04 Å) Gd(1)-Br(3) bond length. In the second Gd site, Gd(2) is bonded to one Co(1), one Br(3), one Br(4), one Br(5), and two equivalent Br(1) atoms to form a mixture of corner and edge-sharing GdCoBr5 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. The Gd(2)-Co(1) bond length is 2.55 Å. The Gd(2)-Br(3) bond length is 3.05 Å. The Gd(2)-Br(4) bond length is 2.95 Å. The Gd(2)-Br(5) bond length is 2.85 Å. There is one shorter (2.94 Å) and one longer (3.11 Å) Gd(2)-Br(1) bond length. In the third Gd site, Gd(3) is bonded to one Co(1), one Br(1), one Br(3), one Br(4), and two equivalent Br(2) atoms to form a mixture of corner and edge-sharing GdCoBr5 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. The Gd(3)-Co(1) bond length is 2.70 Å. The Gd(3)-Br(1) bond length is 2.90 Å. The Gd(3)-Br(3) bond length is 3.02 Å. The Gd(3)-Br(4) bond length is 2.91 Å. There is one shorter (2.92 Å) and one longer (3.08 Å) Gd(3)-Br(2) bond length. Co(1) is bonded in an octahedral geometry to two equivalent Gd(1), two equivalent Gd(2), and two equivalent Gd(3) atoms. There are five inequivalent Br sites. In the first Br site, Br(1) is bonded in a T-shaped geometry to one Gd(3) and two equivalent Gd(2) atoms. In the second Br site, Br(2) is bonded in a T-shaped geometry to one Gd(1) and two equivalent Gd(3) atoms. In the third Br site, Br(3) is bonded in a see-saw-like geometry to one Gd(2), one Gd(3), and two equivalent Gd(1) atoms. In the fourth Br site, Br(4) is bonded in a 3-coordinate geometry to one Gd(1), one Gd(2), and one Gd(3) atom. In the fifth Br site, Br(5) is bonded in an L-shaped geometry to one Gd(1) and one Gd(2) atom.