SrPr3(FeO3)4 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Pm space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to one O(5), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Pr site, Pr(2) is bonded in a 8-coordinate geometry to one O(7), one O(8), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one O(7), one O(8), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 20-27°. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 20-27°. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Pr(1), one Pr(3), one Fe(1), and one Fe(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), one Pr(1), one Pr(2), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Pr(1), one Pr(2), one Pr(3), one Fe(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Pr(2), one Pr(3), one Fe(1), and one Fe(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Pr(1), and two equivalent Fe(1) atoms. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Pr(1), and two equivalent Fe(2) atoms. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Pr(2), one Pr(3), and two equivalent Fe(1) atoms. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Pr(2), one Pr(3), and two equivalent Fe(2) atoms.
SrPr3(FeO3)4 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Pm space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. Both Sr(1)-O(1) bond lengths are 2.75 Å. Both Sr(1)-O(2) bond lengths are 2.52 Å. Both Sr(1)-O(4) bond lengths are 2.83 Å. There is one shorter (2.63 Å) and one longer (3.06 Å) Sr(1)-O(5) bond length. There is one shorter (2.50 Å) and one longer (3.08 Å) Sr(1)-O(6) bond length. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to one O(5), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. The Pr(1)-O(5) bond length is 2.41 Å. The Pr(1)-O(6) bond length is 2.48 Å. Both Pr(1)-O(1) bond lengths are 2.43 Å. Both Pr(1)-O(2) bond lengths are 2.63 Å. Both Pr(1)-O(3) bond lengths are 2.82 Å. In the second Pr site, Pr(2) is bonded in a 8-coordinate geometry to one O(7), one O(8), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. The Pr(2)-O(7) bond length is 2.52 Å. The Pr(2)-O(8) bond length is 2.41 Å. Both Pr(2)-O(2) bond lengths are 2.74 Å. Both Pr(2)-O(3) bond lengths are 2.59 Å. Both Pr(2)-O(4) bond lengths are 2.45 Å. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one O(7), one O(8), two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. The Pr(3)-O(7) bond length is 2.42 Å. The Pr(3)-O(8) bond length is 2.52 Å. Both Pr(3)-O(1) bond lengths are 2.70 Å. Both Pr(3)-O(3) bond lengths are 2.45 Å. Both Pr(3)-O(4) bond lengths are 2.61 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 20-27°. The Fe(1)-O(1) bond length is 2.02 Å. The Fe(1)-O(2) bond length is 2.02 Å. The Fe(1)-O(3) bond length is 2.03 Å. The Fe(1)-O(4) bond length is 2.02 Å. The Fe(1)-O(5) bond length is 2.01 Å. The Fe(1)-O(7) bond length is 2.02 Å. In the second Fe site, Fe(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 20-27°. The Fe(2)-O(1) bond length is 2.02 Å. The Fe(2)-O(2) bond length is 1.99 Å. The Fe(2)-O(3) bond length is 2.04 Å. The Fe(2)-O(4) bond length is 2.02 Å. The Fe(2)-O(6) bond length is 1.99 Å. The Fe(2)-O(8) bond length is 2.02 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Pr(1), one Pr(3), one Fe(1), and one Fe(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), one Pr(1), one Pr(2), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Pr(1), one Pr(2), one Pr(3), one Fe(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Pr(2), one Pr(3), one Fe(1), and one Fe(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Pr(1), and two equivalent Fe(1) atoms. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Pr(1), and two equivalent Fe(2) atoms. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Pr(2), one Pr(3), and two equivalent Fe(1) atoms. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Pr(2), one Pr(3), and two equivalent Fe(2) atoms.