BaTmCo4O7 crystallizes in the orthorhombic Pna2_1 space group. Ba(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. Tm(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form TmO6 octahedra that share corners with three equivalent Co(1)O4 tetrahedra, corners with three equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(3)O4 tetrahedra, and corners with three equivalent Co(4)O4 tetrahedra. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Co(3)O4 tetrahedra, and corners with two equivalent Co(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-61°. In the second Co site, Co(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(3)O4 tetrahedra, and corners with two equivalent Co(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-58°. In the third Co site, Co(3) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Co(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-60°. In the fourth Co site, Co(4) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Co(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-54°. There are seven inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Tm(1), one Co(2), and one Co(4) atom. In the second O site, O(4) is bonded in a 4-coordinate geometry to one Ba(1), one Tm(1), one Co(3), and one Co(4) atom. In the third O site, O(5) is bonded in a distorted trigonal planar geometry to one Ba(1), one Tm(1), one Co(2), and one Co(3) atom. In the fourth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Tm(1), one Co(1), and one Co(2) atom. In the fifth O site, O(7) is bonded in a 3-coordinate geometry to one Ba(1), one Tm(1), one Co(1), and one Co(3) atom. In the sixth O site, O(1) is bonded in a tetrahedral geometry to one Co(1), one Co(2), one Co(3), and one Co(4) atom. In the seventh O site, O(2) is bonded in a 4-coordinate geometry to one Ba(1), one Tm(1), one Co(1), and one Co(4) atom.
BaTmCo4O7 crystallizes in the orthorhombic Pna2_1 space group. Ba(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. The Ba(1)-O(2) bond length is 2.83 Å. The Ba(1)-O(3) bond length is 3.02 Å. The Ba(1)-O(4) bond length is 2.90 Å. The Ba(1)-O(5) bond length is 3.04 Å. The Ba(1)-O(6) bond length is 2.83 Å. The Ba(1)-O(7) bond length is 2.93 Å. Tm(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form TmO6 octahedra that share corners with three equivalent Co(1)O4 tetrahedra, corners with three equivalent Co(2)O4 tetrahedra, corners with three equivalent Co(3)O4 tetrahedra, and corners with three equivalent Co(4)O4 tetrahedra. The Tm(1)-O(2) bond length is 2.31 Å. The Tm(1)-O(3) bond length is 2.28 Å. The Tm(1)-O(4) bond length is 2.33 Å. The Tm(1)-O(5) bond length is 2.20 Å. The Tm(1)-O(6) bond length is 2.21 Å. The Tm(1)-O(7) bond length is 2.22 Å. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(6), and one O(7) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(2)O4 tetrahedra, corners with two equivalent Co(3)O4 tetrahedra, and corners with two equivalent Co(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-61°. The Co(1)-O(1) bond length is 2.00 Å. The Co(1)-O(2) bond length is 1.99 Å. The Co(1)-O(6) bond length is 1.97 Å. The Co(1)-O(7) bond length is 1.96 Å. In the second Co site, Co(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(3)O4 tetrahedra, and corners with two equivalent Co(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 52-58°. The Co(2)-O(1) bond length is 2.00 Å. The Co(2)-O(3) bond length is 1.99 Å. The Co(2)-O(5) bond length is 1.95 Å. The Co(2)-O(6) bond length is 1.96 Å. In the third Co site, Co(3) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Co(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 55-60°. The Co(3)-O(1) bond length is 2.00 Å. The Co(3)-O(4) bond length is 1.99 Å. The Co(3)-O(5) bond length is 1.94 Å. The Co(3)-O(7) bond length is 1.95 Å. In the fourth Co site, Co(4) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CoO4 tetrahedra that share corners with three equivalent Tm(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra, and corners with two equivalent Co(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 50-54°. The Co(4)-O(1) bond length is 1.95 Å. The Co(4)-O(2) bond length is 1.89 Å. The Co(4)-O(3) bond length is 1.89 Å. The Co(4)-O(4) bond length is 1.87 Å. There are seven inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one Tm(1), one Co(2), and one Co(4) atom. In the second O site, O(4) is bonded in a 4-coordinate geometry to one Ba(1), one Tm(1), one Co(3), and one Co(4) atom. In the third O site, O(5) is bonded in a distorted trigonal planar geometry to one Ba(1), one Tm(1), one Co(2), and one Co(3) atom. In the fourth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Tm(1), one Co(1), and one Co(2) atom. In the fifth O site, O(7) is bonded in a 3-coordinate geometry to one Ba(1), one Tm(1), one Co(1), and one Co(3) atom. In the sixth O site, O(1) is bonded in a tetrahedral geometry to one Co(1), one Co(2), one Co(3), and one Co(4) atom. In the seventh O site, O(2) is bonded in a 4-coordinate geometry to one Ba(1), one Tm(1), one Co(1), and one Co(4) atom.