Sm2AsO5As crystallizes in the tetragonal P4/mmm space group. The structure consists of one 7440-38-2 atom inside a Sm2AsO5 framework. In the Sm2AsO5 framework, Sm(1) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. As(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sm(1) and two equivalent As(1) atoms to form a mixture of corner and edge-sharing OSm2As2 tetrahedra. In the second O site, O(2) is bonded in a linear geometry to two equivalent Sm(1) atoms.
Sm2AsO5As crystallizes in the tetragonal P4/mmm space group. The structure consists of one 7440-38-2 atom inside a Sm2AsO5 framework. In the Sm2AsO5 framework, Sm(1) is bonded in a 5-coordinate geometry to one O(2) and four equivalent O(1) atoms. The Sm(1)-O(2) bond length is 2.40 Å. All Sm(1)-O(1) bond lengths are 2.24 Å. As(1) is bonded in a body-centered cubic geometry to eight equivalent O(1) atoms. All As(1)-O(1) bond lengths are 2.28 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sm(1) and two equivalent As(1) atoms to form a mixture of corner and edge-sharing OSm2As2 tetrahedra. In the second O site, O(2) is bonded in a linear geometry to two equivalent Sm(1) atoms.