Sr7PrFe4(MoO6)4 crystallizes in the triclinic P1 space group. There are seven inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(10), one O(17), one O(21), one O(22), two equivalent O(13), and two equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a 1-coordinate geometry to one O(11), one O(18), one O(22), one O(23), and two equivalent O(6) atoms. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one O(12), one O(19), one O(23), one O(24), one O(7), and two equivalent O(15) atoms. In the fourth Sr site, Sr(4) is bonded in a 3-coordinate geometry to one O(20), one O(21), one O(24), one O(9), and two equivalent O(8) atoms. In the fifth Sr site, Sr(5) is bonded in a 1-coordinate geometry to one O(17), one O(5), one O(6), two equivalent O(10), and two equivalent O(22) atoms. In the sixth Sr site, Sr(6) is bonded in a 3-coordinate geometry to one O(20), one O(5), one O(8), one O(9), and two equivalent O(21) atoms. In the seventh Sr site, Sr(7) is bonded in a 1-coordinate geometry to one O(18), one O(6), one O(7), two equivalent O(11), and two equivalent O(23) atoms. Pr(1) is bonded in a 3-coordinate geometry to one O(12), one O(19), one O(24), one O(7), and one O(8) atom. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 4-coordinate geometry to one O(1), one O(16), one O(20), one O(21), one O(8), and one O(9) atom. In the second Mo site, Mo(2) is bonded in a distorted linear geometry to one O(1), one O(13), one O(17), one O(21), one O(5), and one O(9) atom. In the third Mo site, Mo(3) is bonded in a 2-coordinate geometry to one O(10), one O(14), one O(18), one O(2), one O(22), and one O(6) atom. In the fourth Mo site, Mo(4) is bonded in a distorted linear geometry to one O(11), one O(15), one O(19), one O(23), one O(3), and one O(7) atom. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 4-coordinate geometry to one O(10), one O(13), one O(17), one O(2), one O(22), and one O(5) atom. In the second Fe site, Fe(2) is bonded in a 4-coordinate geometry to one O(11), one O(14), one O(18), one O(23), one O(3), and one O(6) atom. In the third Fe site, Fe(3) is bonded in a 4-coordinate geometry to one O(12), one O(15), one O(19), one O(24), and one O(4) atom. In the fourth Fe site, Fe(4) is bonded in a distorted linear geometry to one O(12), one O(16), one O(20), one O(24), one O(4), and one O(8) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mo(1) and one Mo(2) atom. In the second O site, O(2) is bonded in a linear geometry to one Mo(3) and one Fe(1) atom. In the third O site, O(3) is bonded in a linear geometry to one Mo(4) and one Fe(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Fe(3) and one Fe(4) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Sr(5), one Sr(6), two equivalent Sr(1), one Mo(2), and one Fe(1) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(5), one Sr(7), two equivalent Sr(2), one Mo(3), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(7), one Pr(1), and one Mo(4) atom. In the eighth O site, O(8) is bonded in a 6-coordinate geometry to one Sr(6), two equivalent Sr(4), one Pr(1), one Mo(1), and one Fe(4) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Sr(4), one Sr(6), one Mo(1), and one Mo(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(5), one Mo(3), and one Fe(1) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Sr(2), two equivalent Sr(7), one Mo(4), and one Fe(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Sr(3), one Pr(1), one Fe(3), and one Fe(4) atom. In the thirteenth O site, O(13) is bonded in a linear geometry to two equivalent Sr(1), one Mo(2), and one Fe(1) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one Mo(3) and one Fe(2) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to two equivalent Sr(3), one Mo(4), and one Fe(3) atom. In the sixteenth O site, O(16) is bonded in a linear geometry to one Mo(1) and one Fe(4) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(5), one Mo(2), and one Fe(1) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Sr(2), one Sr(7), one Mo(3), and one Fe(2) atom. In the nineteenth O site, O(19) is bonded in a 4-coordinate geometry to one Sr(3), one Pr(1), one Mo(4), and one Fe(3) atom. In the twentieth O site, O(20) is bonded in a 4-coordinate geometry to one Sr(4), one Sr(6), one Mo(1), and one Fe(4) atom. In the twenty-first O site, O(21) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(4), two equivalent Sr(6), one Mo(1), and one Mo(2) atom. In the twenty-second O site, O(22) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), two equivalent Sr(5), one Mo(3), and one Fe(1) atom. In the twenty-third O site, O(23) is bonded in a 6-coordinate geometry to one Sr(2), one Sr(3), two equivalent Sr(7), one Mo(4), and one Fe(2) atom. In the twenty-fourth O site, O(24) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Pr(1), one Fe(3), and one Fe(4) atom.
Sr7PrFe4(MoO6)4 crystallizes in the triclinic P1 space group. There are seven inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(10), one O(17), one O(21), one O(22), two equivalent O(13), and two equivalent O(5) atoms. The Sr(1)-O(10) bond length is 2.80 Å. The Sr(1)-O(17) bond length is 2.49 Å. The Sr(1)-O(21) bond length is 2.27 Å. The Sr(1)-O(22) bond length is 2.68 Å. There is one shorter (2.76 Å) and one longer (2.86 Å) Sr(1)-O(13) bond length. There is one shorter (2.58 Å) and one longer (3.13 Å) Sr(1)-O(5) bond length. In the second Sr site, Sr(2) is bonded in a 1-coordinate geometry to one O(11), one O(18), one O(22), one O(23), and two equivalent O(6) atoms. The Sr(2)-O(11) bond length is 2.82 Å. The Sr(2)-O(18) bond length is 2.53 Å. The Sr(2)-O(22) bond length is 2.16 Å. The Sr(2)-O(23) bond length is 2.77 Å. There is one shorter (2.57 Å) and one longer (3.13 Å) Sr(2)-O(6) bond length. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one O(12), one O(19), one O(23), one O(24), one O(7), and two equivalent O(15) atoms. The Sr(3)-O(12) bond length is 2.67 Å. The Sr(3)-O(19) bond length is 2.47 Å. The Sr(3)-O(23) bond length is 2.23 Å. The Sr(3)-O(24) bond length is 2.73 Å. The Sr(3)-O(7) bond length is 2.55 Å. There is one shorter (2.77 Å) and one longer (2.85 Å) Sr(3)-O(15) bond length. In the fourth Sr site, Sr(4) is bonded in a 3-coordinate geometry to one O(20), one O(21), one O(24), one O(9), and two equivalent O(8) atoms. The Sr(4)-O(20) bond length is 2.43 Å. The Sr(4)-O(21) bond length is 2.85 Å. The Sr(4)-O(24) bond length is 2.05 Å. The Sr(4)-O(9) bond length is 2.88 Å. There is one shorter (2.54 Å) and one longer (3.17 Å) Sr(4)-O(8) bond length. In the fifth Sr site, Sr(5) is bonded in a 1-coordinate geometry to one O(17), one O(5), one O(6), two equivalent O(10), and two equivalent O(22) atoms. The Sr(5)-O(17) bond length is 2.74 Å. The Sr(5)-O(5) bond length is 2.71 Å. The Sr(5)-O(6) bond length is 2.22 Å. There is one shorter (2.61 Å) and one longer (3.09 Å) Sr(5)-O(10) bond length. There is one shorter (2.55 Å) and one longer (3.15 Å) Sr(5)-O(22) bond length. In the sixth Sr site, Sr(6) is bonded in a 3-coordinate geometry to one O(20), one O(5), one O(8), one O(9), and two equivalent O(21) atoms. The Sr(6)-O(20) bond length is 2.86 Å. The Sr(6)-O(5) bond length is 2.14 Å. The Sr(6)-O(8) bond length is 2.94 Å. The Sr(6)-O(9) bond length is 2.41 Å. There is one shorter (2.56 Å) and one longer (3.13 Å) Sr(6)-O(21) bond length. In the seventh Sr site, Sr(7) is bonded in a 1-coordinate geometry to one O(18), one O(6), one O(7), two equivalent O(11), and two equivalent O(23) atoms. The Sr(7)-O(18) bond length is 2.77 Å. The Sr(7)-O(6) bond length is 2.69 Å. The Sr(7)-O(7) bond length is 2.22 Å. There is one shorter (2.52 Å) and one longer (3.17 Å) Sr(7)-O(11) bond length. There is one shorter (2.57 Å) and one longer (3.14 Å) Sr(7)-O(23) bond length. Pr(1) is bonded in a 3-coordinate geometry to one O(12), one O(19), one O(24), one O(7), and one O(8) atom. The Pr(1)-O(12) bond length is 2.33 Å. The Pr(1)-O(19) bond length is 2.66 Å. The Pr(1)-O(24) bond length is 2.36 Å. The Pr(1)-O(7) bond length is 2.68 Å. The Pr(1)-O(8) bond length is 2.10 Å. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 4-coordinate geometry to one O(1), one O(16), one O(20), one O(21), one O(8), and one O(9) atom. The Mo(1)-O(1) bond length is 1.61 Å. The Mo(1)-O(16) bond length is 1.60 Å. The Mo(1)-O(20) bond length is 1.95 Å. The Mo(1)-O(21) bond length is 2.69 Å. The Mo(1)-O(8) bond length is 2.68 Å. The Mo(1)-O(9) bond length is 1.96 Å. In the second Mo site, Mo(2) is bonded in a distorted linear geometry to one O(1), one O(13), one O(17), one O(21), one O(5), and one O(9) atom. The Mo(2)-O(1) bond length is 1.63 Å. The Mo(2)-O(13) bond length is 1.58 Å. The Mo(2)-O(17) bond length is 2.34 Å. The Mo(2)-O(21) bond length is 2.50 Å. The Mo(2)-O(5) bond length is 2.46 Å. The Mo(2)-O(9) bond length is 2.42 Å. In the third Mo site, Mo(3) is bonded in a 2-coordinate geometry to one O(10), one O(14), one O(18), one O(2), one O(22), and one O(6) atom. The Mo(3)-O(10) bond length is 2.17 Å. The Mo(3)-O(14) bond length is 1.62 Å. The Mo(3)-O(18) bond length is 2.21 Å. The Mo(3)-O(2) bond length is 1.62 Å. The Mo(3)-O(22) bond length is 2.46 Å. The Mo(3)-O(6) bond length is 2.48 Å. In the fourth Mo site, Mo(4) is bonded in a distorted linear geometry to one O(11), one O(15), one O(19), one O(23), one O(3), and one O(7) atom. The Mo(4)-O(11) bond length is 2.26 Å. The Mo(4)-O(15) bond length is 1.61 Å. The Mo(4)-O(19) bond length is 2.31 Å. The Mo(4)-O(23) bond length is 2.36 Å. The Mo(4)-O(3) bond length is 1.59 Å. The Mo(4)-O(7) bond length is 2.39 Å. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 4-coordinate geometry to one O(10), one O(13), one O(17), one O(2), one O(22), and one O(5) atom. The Fe(1)-O(10) bond length is 2.15 Å. The Fe(1)-O(13) bond length is 1.63 Å. The Fe(1)-O(17) bond length is 1.97 Å. The Fe(1)-O(2) bond length is 1.58 Å. The Fe(1)-O(22) bond length is 2.67 Å. The Fe(1)-O(5) bond length is 2.67 Å. In the second Fe site, Fe(2) is bonded in a 4-coordinate geometry to one O(11), one O(14), one O(18), one O(23), one O(3), and one O(6) atom. The Fe(2)-O(11) bond length is 2.02 Å. The Fe(2)-O(14) bond length is 1.58 Å. The Fe(2)-O(18) bond length is 2.10 Å. The Fe(2)-O(23) bond length is 2.77 Å. The Fe(2)-O(3) bond length is 1.62 Å. The Fe(2)-O(6) bond length is 2.62 Å. In the third Fe site, Fe(3) is bonded in a 4-coordinate geometry to one O(12), one O(15), one O(19), one O(24), and one O(4) atom. The Fe(3)-O(12) bond length is 1.98 Å. The Fe(3)-O(15) bond length is 1.62 Å. The Fe(3)-O(19) bond length is 2.05 Å. The Fe(3)-O(24) bond length is 2.65 Å. The Fe(3)-O(4) bond length is 1.60 Å. In the fourth Fe site, Fe(4) is bonded in a distorted linear geometry to one O(12), one O(16), one O(20), one O(24), one O(4), and one O(8) atom. The Fe(4)-O(12) bond length is 2.29 Å. The Fe(4)-O(16) bond length is 1.62 Å. The Fe(4)-O(20) bond length is 2.40 Å. The Fe(4)-O(24) bond length is 2.41 Å. The Fe(4)-O(4) bond length is 1.57 Å. The Fe(4)-O(8) bond length is 2.48 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Mo(1) and one Mo(2) atom. In the second O site, O(2) is bonded in a linear geometry to one Mo(3) and one Fe(1) atom. In the third O site, O(3) is bonded in a linear geometry to one Mo(4) and one Fe(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to one Fe(3) and one Fe(4) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Sr(5), one Sr(6), two equivalent Sr(1), one Mo(2), and one Fe(1) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(5), one Sr(7), two equivalent Sr(2), one Mo(3), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(7), one Pr(1), and one Mo(4) atom. In the eighth O site, O(8) is bonded in a 6-coordinate geometry to one Sr(6), two equivalent Sr(4), one Pr(1), one Mo(1), and one Fe(4) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Sr(4), one Sr(6), one Mo(1), and one Mo(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(5), one Mo(3), and one Fe(1) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Sr(2), two equivalent Sr(7), one Mo(4), and one Fe(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Sr(3), one Pr(1), one Fe(3), and one Fe(4) atom. In the thirteenth O site, O(13) is bonded in a linear geometry to two equivalent Sr(1), one Mo(2), and one Fe(1) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one Mo(3) and one Fe(2) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to two equivalent Sr(3), one Mo(4), and one Fe(3) atom. In the sixteenth O site, O(16) is bonded in a linear geometry to one Mo(1) and one Fe(4) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(5), one Mo(2), and one Fe(1) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Sr(2), one Sr(7), one Mo(3), and one Fe(2) atom. In the nineteenth O site, O(19) is bonded in a 4-coordinate geometry to one Sr(3), one Pr(1), one Mo(4), and one Fe(3) atom. In the twentieth O site, O(20) is bonded in a 4-coordinate geometry to one Sr(4), one Sr(6), one Mo(1), and one Fe(4) atom. In the twenty-first O site, O(21) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(4), two equivalent Sr(6), one Mo(1), and one Mo(2) atom. In the twenty-second O site, O(22) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), two equivalent Sr(5), one Mo(3), and one Fe(1) atom. In the twenty-third O site, O(23) is bonded in a 6-coordinate geometry to one Sr(2), one Sr(3), two equivalent Sr(7), one Mo(4), and one Fe(2) atom. In the twenty-fourth O site, O(24) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Pr(1), one Fe(3), and one Fe(4) atom.