CaSmCr4O12 crystallizes in the orthorhombic Amm2 space group. Ca(1) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Sm(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(5), and four equivalent O(1) atoms. Cr(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedral tilt angles range from 16-28°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sm(1) and two equivalent Cr(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Ca(1), one Sm(1), and two equivalent Cr(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Ca(1) and two equivalent Cr(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ca(1) and two equivalent Cr(1) atoms. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sm(1) and two equivalent Cr(1) atoms.
CaSmCr4O12 crystallizes in the orthorhombic Amm2 space group. Ca(1) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Ca(1)-O(2) bond lengths are 2.68 Å. Both Ca(1)-O(3) bond lengths are 2.37 Å. Both Ca(1)-O(4) bond lengths are 2.32 Å. Sm(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(5), and four equivalent O(1) atoms. Both Sm(1)-O(2) bond lengths are 2.59 Å. Both Sm(1)-O(5) bond lengths are 2.42 Å. All Sm(1)-O(1) bond lengths are 2.43 Å. Cr(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing CrO6 octahedra. The corner-sharing octahedral tilt angles range from 16-28°. The Cr(1)-O(2) bond length is 1.91 Å. The Cr(1)-O(3) bond length is 1.88 Å. The Cr(1)-O(4) bond length is 1.86 Å. The Cr(1)-O(5) bond length is 1.92 Å. There is one shorter (1.78 Å) and one longer (2.05 Å) Cr(1)-O(1) bond length. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Sm(1) and two equivalent Cr(1) atoms. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Ca(1), one Sm(1), and two equivalent Cr(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Ca(1) and two equivalent Cr(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ca(1) and two equivalent Cr(1) atoms. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sm(1) and two equivalent Cr(1) atoms.