SrPr3CrNiO8 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(3), two equivalent O(4), two equivalent O(5), and four equivalent O(1) atoms. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(4), two equivalent O(5), and four equivalent O(1) atoms. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. In the third Pr site, Pr(3) is bonded in a 9-coordinate geometry to one O(5), two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Cr(1) is bonded to one O(3), one O(5), and four equivalent O(1) atoms to form CrO6 octahedra that share corners with four equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 5°. Ni(1) is bonded to one O(2), one O(4), and four equivalent O(1) atoms to form NiO6 octahedra that share corners with four equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles are 5°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Pr(1), one Pr(2), one Pr(3), one Cr(1), and one Ni(1) atom to form distorted OSrPr3CrNi octahedra that share corners with two equivalent O(1)SrPr3CrNi octahedra, corners with three equivalent O(2)Pr5Ni octahedra, corners with three equivalent O(5)Sr2Pr3Cr octahedra, corners with three equivalent O(4)Sr2Pr3Ni octahedra, corners with three equivalent O(3)SrPr4Cr octahedra, edges with two equivalent O(1)SrPr3CrNi octahedra,  a faceface with one O(2)Pr5Ni octahedra,  a faceface with one O(5)Sr2Pr3Cr octahedra,  a faceface with one O(4)Sr2Pr3Ni octahedra,  a faceface with one O(3)SrPr4Cr octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 3-53°. In the second O site, O(2) is bonded to one Pr(1), two equivalent Pr(2), two equivalent Pr(3), and one Ni(1) atom to form distorted OPr5Ni octahedra that share  a cornercorner with one O(4)Sr2Pr3Ni octahedra, corners with four equivalent O(2)Pr5Ni octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(5)Sr2Pr3Cr octahedra, edges with two equivalent O(4)Sr2Pr3Ni octahedra, edges with four equivalent O(3)SrPr4Cr octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-50°. In the third O site, O(3) is bonded to one Sr(1), two equivalent Pr(2), two equivalent Pr(3), and one Cr(1) atom to form distorted OSrPr4Cr octahedra that share  a cornercorner with one O(5)Sr2Pr3Cr octahedra, corners with four equivalent O(3)SrPr4Cr octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(5)Sr2Pr3Cr octahedra, edges with two equivalent O(4)Sr2Pr3Ni octahedra, edges with four equivalent O(2)Pr5Ni octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), one Pr(2), two equivalent Pr(1), and one Ni(1) atom to form distorted OSr2Pr3Ni octahedra that share  a cornercorner with one O(2)Pr5Ni octahedra, corners with four equivalent O(4)Sr2Pr3Ni octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(2)Pr5Ni octahedra, edges with two equivalent O(3)SrPr4Cr octahedra, edges with four equivalent O(5)Sr2Pr3Cr octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the fifth O site, O(5) is bonded to two equivalent Sr(1), one Pr(3), two equivalent Pr(1), and one Cr(1) atom to form distorted OSr2Pr3Cr octahedra that share  a cornercorner with one O(3)SrPr4Cr octahedra, corners with four equivalent O(5)Sr2Pr3Cr octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(2)Pr5Ni octahedra, edges with two equivalent O(3)SrPr4Cr octahedra, edges with four equivalent O(4)Sr2Pr3Ni octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-53°.
SrPr3CrNiO8 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(3), two equivalent O(4), two equivalent O(5), and four equivalent O(1) atoms. The Sr(1)-O(3) bond length is 2.41 Å. Both Sr(1)-O(4) bond lengths are 2.78 Å. Both Sr(1)-O(5) bond lengths are 2.78 Å. All Sr(1)-O(1) bond lengths are 2.69 Å. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(4), two equivalent O(5), and four equivalent O(1) atoms. The Pr(1)-O(2) bond length is 2.31 Å. Both Pr(1)-O(4) bond lengths are 2.80 Å. Both Pr(1)-O(5) bond lengths are 2.79 Å. All Pr(1)-O(1) bond lengths are 2.60 Å. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. The Pr(2)-O(4) bond length is 2.30 Å. Both Pr(2)-O(2) bond lengths are 2.80 Å. Both Pr(2)-O(3) bond lengths are 2.77 Å. All Pr(2)-O(1) bond lengths are 2.55 Å. In the third Pr site, Pr(3) is bonded in a 9-coordinate geometry to one O(5), two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. The Pr(3)-O(5) bond length is 2.39 Å. Both Pr(3)-O(2) bond lengths are 2.80 Å. Both Pr(3)-O(3) bond lengths are 2.78 Å. All Pr(3)-O(1) bond lengths are 2.57 Å. Cr(1) is bonded to one O(3), one O(5), and four equivalent O(1) atoms to form CrO6 octahedra that share corners with four equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 5°. The Cr(1)-O(3) bond length is 2.04 Å. The Cr(1)-O(5) bond length is 2.14 Å. All Cr(1)-O(1) bond lengths are 1.94 Å. Ni(1) is bonded to one O(2), one O(4), and four equivalent O(1) atoms to form NiO6 octahedra that share corners with four equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles are 5°. The Ni(1)-O(2) bond length is 2.26 Å. The Ni(1)-O(4) bond length is 2.15 Å. All Ni(1)-O(1) bond lengths are 1.96 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Pr(1), one Pr(2), one Pr(3), one Cr(1), and one Ni(1) atom to form distorted OSrPr3CrNi octahedra that share corners with two equivalent O(1)SrPr3CrNi octahedra, corners with three equivalent O(2)Pr5Ni octahedra, corners with three equivalent O(5)Sr2Pr3Cr octahedra, corners with three equivalent O(4)Sr2Pr3Ni octahedra, corners with three equivalent O(3)SrPr4Cr octahedra, edges with two equivalent O(1)SrPr3CrNi octahedra,  a faceface with one O(2)Pr5Ni octahedra,  a faceface with one O(5)Sr2Pr3Cr octahedra,  a faceface with one O(4)Sr2Pr3Ni octahedra,  a faceface with one O(3)SrPr4Cr octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 3-53°. In the second O site, O(2) is bonded to one Pr(1), two equivalent Pr(2), two equivalent Pr(3), and one Ni(1) atom to form distorted OPr5Ni octahedra that share  a cornercorner with one O(4)Sr2Pr3Ni octahedra, corners with four equivalent O(2)Pr5Ni octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(5)Sr2Pr3Cr octahedra, edges with two equivalent O(4)Sr2Pr3Ni octahedra, edges with four equivalent O(3)SrPr4Cr octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-50°. In the third O site, O(3) is bonded to one Sr(1), two equivalent Pr(2), two equivalent Pr(3), and one Cr(1) atom to form distorted OSrPr4Cr octahedra that share  a cornercorner with one O(5)Sr2Pr3Cr octahedra, corners with four equivalent O(3)SrPr4Cr octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(5)Sr2Pr3Cr octahedra, edges with two equivalent O(4)Sr2Pr3Ni octahedra, edges with four equivalent O(2)Pr5Ni octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), one Pr(2), two equivalent Pr(1), and one Ni(1) atom to form distorted OSr2Pr3Ni octahedra that share  a cornercorner with one O(2)Pr5Ni octahedra, corners with four equivalent O(4)Sr2Pr3Ni octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(2)Pr5Ni octahedra, edges with two equivalent O(3)SrPr4Cr octahedra, edges with four equivalent O(5)Sr2Pr3Cr octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the fifth O site, O(5) is bonded to two equivalent Sr(1), one Pr(3), two equivalent Pr(1), and one Cr(1) atom to form distorted OSr2Pr3Cr octahedra that share  a cornercorner with one O(3)SrPr4Cr octahedra, corners with four equivalent O(5)Sr2Pr3Cr octahedra, corners with twelve equivalent O(1)SrPr3CrNi octahedra, edges with two equivalent O(2)Pr5Ni octahedra, edges with two equivalent O(3)SrPr4Cr octahedra, edges with four equivalent O(4)Sr2Pr3Ni octahedra, and faces with four equivalent O(1)SrPr3CrNi octahedra. The corner-sharing octahedral tilt angles range from 0-53°.