Sm2Ag2O5 is Aluminum carbonitride-like structured and crystallizes in the orthorhombic Ima2 space group. Sm(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form AgO6 octahedra that share corners with four equivalent Ag(1)O6 octahedra and corners with two equivalent Ag(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. In the second Ag site, Ag(2) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form AgO4 tetrahedra that share corners with two equivalent Ag(1)O6 octahedra and corners with two equivalent Ag(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sm(1) and two equivalent Ag(1) atoms to form a mixture of distorted corner and edge-sharing OSm2Ag2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Sm(1), one Ag(1), and one Ag(2) atom to form a mixture of corner and edge-sharing OSm2Ag2 tetrahedra. In the third O site, O(3) is bonded to two equivalent Sm(1) and two equivalent Ag(2) atoms to form distorted corner-sharing OSm2Ag2 tetrahedra.
Sm2Ag2O5 is Aluminum carbonitride-like structured and crystallizes in the orthorhombic Ima2 space group. Sm(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. The Sm(1)-O(3) bond length is 2.20 Å. There is one shorter (2.42 Å) and one longer (2.44 Å) Sm(1)-O(1) bond length. There is one shorter (2.28 Å) and one longer (2.35 Å) Sm(1)-O(2) bond length. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form AgO6 octahedra that share corners with four equivalent Ag(1)O6 octahedra and corners with two equivalent Ag(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. Both Ag(1)-O(2) bond lengths are 2.24 Å. There are two shorter (2.17 Å) and two longer (2.20 Å) Ag(1)-O(1) bond lengths. In the second Ag site, Ag(2) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form AgO4 tetrahedra that share corners with two equivalent Ag(1)O6 octahedra and corners with two equivalent Ag(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. Both Ag(2)-O(2) bond lengths are 2.26 Å. There is one shorter (2.40 Å) and one longer (2.46 Å) Ag(2)-O(3) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sm(1) and two equivalent Ag(1) atoms to form a mixture of distorted corner and edge-sharing OSm2Ag2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Sm(1), one Ag(1), and one Ag(2) atom to form a mixture of corner and edge-sharing OSm2Ag2 tetrahedra. In the third O site, O(3) is bonded to two equivalent Sm(1) and two equivalent Ag(2) atoms to form distorted corner-sharing OSm2Ag2 tetrahedra.