SmLa(NiO3)2 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent O(1) and eight equivalent O(4) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(2)O12 cuboctahedra, corners with eight equivalent Sm(2)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. In the second Sm site, Sm(2) is bonded to four equivalent O(2), four equivalent O(3), and four equivalent O(4) atoms to form SmO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with four equivalent Sm(2)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Sm(3)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. In the third Sm site, Sm(3) is bonded to four equivalent O(2) and eight equivalent O(3) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(3)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with four equivalent Sm(2)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. There are three inequivalent La sites. In the first La site, La(1) is bonded to four equivalent O(1), four equivalent O(3), and four equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(3)O12 cuboctahedra, corners with four equivalent La(1)O12 cuboctahedra, corners with four equivalent La(3)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. In the second La site, La(2) is bonded to four equivalent O(1) and eight equivalent O(3) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with eight equivalent Sm(2)O12 cuboctahedra, faces with two equivalent Sm(3)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. In the third La site, La(3) is bonded to four equivalent O(2) and eight equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(3)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with four equivalent Sm(2)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. Ni(1) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with six equivalent Ni(1)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one Sm(3)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(3)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, and faces with two equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Sm(1), one La(2), two equivalent La(1), and two equivalent Ni(1) atoms to form distorted OLa3SmNi2 octahedra that share corners with four equivalent O(1)La3SmNi2 octahedra, corners with eight equivalent O(3)La2Sm2Ni2 octahedra, corners with eight equivalent O(4)La2Sm2Ni2 octahedra, edges with four equivalent O(1)La3SmNi2 octahedra, faces with four equivalent O(3)La2Sm2Ni2 octahedra, and faces with four equivalent O(4)La2Sm2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded in a distorted linear geometry to one Sm(3), two equivalent Sm(2), one La(3), and two equivalent Ni(1) atoms. In the third O site, O(3) is bonded to one Sm(2), one Sm(3), one La(1), one La(2), and two equivalent Ni(1) atoms to form distorted OLa2Sm2Ni2 octahedra that share corners with four equivalent O(1)La3SmNi2 octahedra, corners with six equivalent O(4)La2Sm2Ni2 octahedra, corners with eight equivalent O(3)La2Sm2Ni2 octahedra, edges with four equivalent O(3)La2Sm2Ni2 octahedra, faces with two equivalent O(3)La2Sm2Ni2 octahedra, faces with two equivalent O(4)La2Sm2Ni2 octahedra, and faces with two equivalent O(1)La3SmNi2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the fourth O site, O(4) is bonded to one Sm(1), one Sm(2), one La(1), one La(3), and two equivalent Ni(1) atoms to form distorted OLa2Sm2Ni2 octahedra that share corners with four equivalent O(1)La3SmNi2 octahedra, corners with six equivalent O(3)La2Sm2Ni2 octahedra, corners with eight equivalent O(4)La2Sm2Ni2 octahedra, edges with four equivalent O(4)La2Sm2Ni2 octahedra, faces with two equivalent O(3)La2Sm2Ni2 octahedra, faces with two equivalent O(4)La2Sm2Ni2 octahedra, and faces with two equivalent O(1)La3SmNi2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°.
SmLa(NiO3)2 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent O(1) and eight equivalent O(4) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(2)O12 cuboctahedra, corners with eight equivalent Sm(2)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. All Sm(1)-O(1) bond lengths are 2.68 Å. All Sm(1)-O(4) bond lengths are 2.71 Å. In the second Sm site, Sm(2) is bonded to four equivalent O(2), four equivalent O(3), and four equivalent O(4) atoms to form SmO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with four equivalent Sm(2)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, faces with two equivalent Sm(3)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. All Sm(2)-O(2) bond lengths are 2.71 Å. All Sm(2)-O(3) bond lengths are 2.68 Å. All Sm(2)-O(4) bond lengths are 2.70 Å. In the third Sm site, Sm(3) is bonded to four equivalent O(2) and eight equivalent O(3) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(3)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with four equivalent Sm(2)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. All Sm(3)-O(2) bond lengths are 2.68 Å. All Sm(3)-O(3) bond lengths are 2.67 Å. There are three inequivalent La sites. In the first La site, La(1) is bonded to four equivalent O(1), four equivalent O(3), and four equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(3)O12 cuboctahedra, corners with four equivalent La(1)O12 cuboctahedra, corners with four equivalent La(3)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. All La(1)-O(1) bond lengths are 2.71 Å. All La(1)-O(3) bond lengths are 2.74 Å. All La(1)-O(4) bond lengths are 2.71 Å. In the second La site, La(2) is bonded to four equivalent O(1) and eight equivalent O(3) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with eight equivalent Sm(2)O12 cuboctahedra, faces with two equivalent Sm(3)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. All La(2)-O(1) bond lengths are 2.73 Å. All La(2)-O(3) bond lengths are 2.74 Å. In the third La site, La(3) is bonded to four equivalent O(2) and eight equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(3)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with four equivalent Sm(2)O12 cuboctahedra, and faces with eight equivalent Ni(1)O6 octahedra. All La(3)-O(2) bond lengths are 2.73 Å. All La(3)-O(4) bond lengths are 2.70 Å. Ni(1) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form NiO6 octahedra that share corners with six equivalent Ni(1)O6 octahedra,  a faceface with one Sm(1)O12 cuboctahedra,  a faceface with one Sm(3)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(3)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, and faces with two equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. The Ni(1)-O(1) bond length is 1.92 Å. The Ni(1)-O(2) bond length is 1.91 Å. Both Ni(1)-O(3) bond lengths are 1.91 Å. Both Ni(1)-O(4) bond lengths are 1.91 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Sm(1), one La(2), two equivalent La(1), and two equivalent Ni(1) atoms to form distorted OLa3SmNi2 octahedra that share corners with four equivalent O(1)La3SmNi2 octahedra, corners with eight equivalent O(3)La2Sm2Ni2 octahedra, corners with eight equivalent O(4)La2Sm2Ni2 octahedra, edges with four equivalent O(1)La3SmNi2 octahedra, faces with four equivalent O(3)La2Sm2Ni2 octahedra, and faces with four equivalent O(4)La2Sm2Ni2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the second O site, O(2) is bonded in a distorted linear geometry to one Sm(3), two equivalent Sm(2), one La(3), and two equivalent Ni(1) atoms. In the third O site, O(3) is bonded to one Sm(2), one Sm(3), one La(1), one La(2), and two equivalent Ni(1) atoms to form distorted OLa2Sm2Ni2 octahedra that share corners with four equivalent O(1)La3SmNi2 octahedra, corners with six equivalent O(4)La2Sm2Ni2 octahedra, corners with eight equivalent O(3)La2Sm2Ni2 octahedra, edges with four equivalent O(3)La2Sm2Ni2 octahedra, faces with two equivalent O(3)La2Sm2Ni2 octahedra, faces with two equivalent O(4)La2Sm2Ni2 octahedra, and faces with two equivalent O(1)La3SmNi2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. In the fourth O site, O(4) is bonded to one Sm(1), one Sm(2), one La(1), one La(3), and two equivalent Ni(1) atoms to form distorted OLa2Sm2Ni2 octahedra that share corners with four equivalent O(1)La3SmNi2 octahedra, corners with six equivalent O(3)La2Sm2Ni2 octahedra, corners with eight equivalent O(4)La2Sm2Ni2 octahedra, edges with four equivalent O(4)La2Sm2Ni2 octahedra, faces with two equivalent O(3)La2Sm2Ni2 octahedra, faces with two equivalent O(4)La2Sm2Ni2 octahedra, and faces with two equivalent O(1)La3SmNi2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°.