Pr4Se3(O5F3)2 crystallizes in the triclinic P1 space group. There are eight inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 10-coordinate geometry to one O(10), one O(18), one O(5), one O(8), one F(1), one F(12), one F(2), one F(4), one F(5), and one F(6) atom. In the second Pr site, Pr(2) is bonded in a 10-coordinate geometry to one O(1), one O(11), one O(14), one O(17), one O(20), one O(6), one F(2), one F(5), one F(7), and one F(9) atom. In the third Pr site, Pr(3) is bonded in a 10-coordinate geometry to one O(10), one O(15), one O(16), one O(4), one O(5), one O(8), one F(1), one F(11), one F(12), and one F(3) atom. In the fourth Pr site, Pr(4) is bonded in a 10-coordinate geometry to one O(13), one O(18), one O(7), one O(8), one F(10), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. In the fifth Pr site, Pr(5) is bonded in a 10-coordinate geometry to one O(13), one O(16), one O(18), one O(4), one O(7), one O(9), one F(10), one F(11), one F(3), and one F(8) atom. In the sixth Pr site, Pr(6) is bonded in a 10-coordinate geometry to one O(11), one O(20), one O(3), one O(6), one F(10), one F(12), one F(3), one F(5), one F(8), and one F(9) atom. In the seventh Pr site, Pr(7) is bonded in a 10-coordinate geometry to one O(12), one O(19), one O(20), one O(3), one F(1), one F(11), one F(12), one F(4), one F(6), and one F(8) atom. In the eighth Pr site, Pr(8) is bonded in a 10-coordinate geometry to one O(1), one O(12), one O(14), one O(19), one O(2), one O(3), one F(2), one F(4), one F(6), and one F(7) atom. There are six inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(13), one O(5), and one O(8) atom. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(1), one O(16), one O(17), and one O(9) atom. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(11), one O(12), and one O(3) atom. In the fourth Se site, Se(4) is bonded in a distorted T-shaped geometry to one O(10), one O(18), and one O(7) atom. In the fifth Se site, Se(5) is bonded in a trigonal non-coplanar geometry to one O(19), one O(20), and one O(6) atom. In the sixth Se site, Se(6) is bonded in a tetrahedral geometry to one O(14), one O(15), one O(2), and one O(4) atom. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Pr(2), one Pr(8), and one Se(2) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Pr(8) and one Se(6) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Pr(6), one Pr(7), one Pr(8), and one Se(3) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Pr(3), one Pr(5), and one Se(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Pr(1), one Pr(3), and one Se(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Pr(2), one Pr(6), and one Se(5) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Pr(4), one Pr(5), and one Se(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(3), one Pr(4), and one Se(1) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Pr(5) and one Se(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Pr(1), one Pr(3), and one Se(4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Pr(2), one Pr(6), and one Se(3) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Pr(7), one Pr(8), and one Se(3) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Pr(4), one Pr(5), and one Se(1) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Pr(2), one Pr(8), and one Se(6) atom. In the fifteenth O site, O(15) is bonded in a distorted water-like geometry to one Pr(3) and one Se(6) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Pr(3), one Pr(5), and one Se(2) atom. In the seventeenth O site, O(17) is bonded in a distorted water-like geometry to one Pr(2) and one Se(2) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(4), one Pr(5), and one Se(4) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Pr(7), one Pr(8), and one Se(5) atom. In the twentieth O site, O(20) is bonded in a distorted single-bond geometry to one Pr(2), one Pr(6), one Pr(7), and one Se(5) atom. There are twelve inequivalent F sites. In the first F site, F(1) is bonded in a trigonal non-coplanar geometry to one Pr(1), one Pr(3), and one Pr(7) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Pr(1), one Pr(2), and one Pr(8) atom. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Pr(3), one Pr(5), and one Pr(6) atom. In the fourth F site, F(4) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(4), one Pr(7), and one Pr(8) atom. In the fifth F site, F(5) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Pr(4), and one Pr(6) atom. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Pr(1), one Pr(7), and one Pr(8) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Pr(2), one Pr(4), and one Pr(8) atom. In the eighth F site, F(8) is bonded in a 4-coordinate geometry to one Pr(4), one Pr(5), one Pr(6), and one Pr(7) atom. In the ninth F site, F(9) is bonded in a trigonal non-coplanar geometry to one Pr(2), one Pr(4), and one Pr(6) atom. In the tenth F site, F(10) is bonded in a trigonal non-coplanar geometry to one Pr(4), one Pr(5), and one Pr(6) atom. In the eleventh F site, F(11) is bonded in a distorted trigonal planar geometry to one Pr(3), one Pr(5), and one Pr(7) atom. In the twelfth F site, F(12) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(3), one Pr(6), and one Pr(7) atom.
Pr4Se3(O5F3)2 crystallizes in the triclinic P1 space group. There are eight inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 10-coordinate geometry to one O(10), one O(18), one O(5), one O(8), one F(1), one F(12), one F(2), one F(4), one F(5), and one F(6) atom. The Pr(1)-O(10) bond length is 2.60 Å. The Pr(1)-O(18) bond length is 2.65 Å. The Pr(1)-O(5) bond length is 2.53 Å. The Pr(1)-O(8) bond length is 2.77 Å. The Pr(1)-F(1) bond length is 2.39 Å. The Pr(1)-F(12) bond length is 2.71 Å. The Pr(1)-F(2) bond length is 2.55 Å. The Pr(1)-F(4) bond length is 2.45 Å. The Pr(1)-F(5) bond length is 2.44 Å. The Pr(1)-F(6) bond length is 2.42 Å. In the second Pr site, Pr(2) is bonded in a 10-coordinate geometry to one O(1), one O(11), one O(14), one O(17), one O(20), one O(6), one F(2), one F(5), one F(7), and one F(9) atom. The Pr(2)-O(1) bond length is 2.79 Å. The Pr(2)-O(11) bond length is 2.41 Å. The Pr(2)-O(14) bond length is 2.53 Å. The Pr(2)-O(17) bond length is 2.75 Å. The Pr(2)-O(20) bond length is 2.63 Å. The Pr(2)-O(6) bond length is 2.45 Å. The Pr(2)-F(2) bond length is 2.46 Å. The Pr(2)-F(5) bond length is 2.96 Å. The Pr(2)-F(7) bond length is 2.44 Å. The Pr(2)-F(9) bond length is 2.48 Å. In the third Pr site, Pr(3) is bonded in a 10-coordinate geometry to one O(10), one O(15), one O(16), one O(4), one O(5), one O(8), one F(1), one F(11), one F(12), and one F(3) atom. The Pr(3)-O(10) bond length is 2.46 Å. The Pr(3)-O(15) bond length is 2.75 Å. The Pr(3)-O(16) bond length is 2.59 Å. The Pr(3)-O(4) bond length is 2.76 Å. The Pr(3)-O(5) bond length is 2.47 Å. The Pr(3)-O(8) bond length is 2.60 Å. The Pr(3)-F(1) bond length is 2.42 Å. The Pr(3)-F(11) bond length is 2.47 Å. The Pr(3)-F(12) bond length is 2.93 Å. The Pr(3)-F(3) bond length is 2.48 Å. In the fourth Pr site, Pr(4) is bonded in a 10-coordinate geometry to one O(13), one O(18), one O(7), one O(8), one F(10), one F(4), one F(5), one F(7), one F(8), and one F(9) atom. The Pr(4)-O(13) bond length is 2.69 Å. The Pr(4)-O(18) bond length is 2.84 Å. The Pr(4)-O(7) bond length is 2.50 Å. The Pr(4)-O(8) bond length is 2.70 Å. The Pr(4)-F(10) bond length is 2.35 Å. The Pr(4)-F(4) bond length is 2.39 Å. The Pr(4)-F(5) bond length is 2.46 Å. The Pr(4)-F(7) bond length is 2.52 Å. The Pr(4)-F(8) bond length is 2.62 Å. The Pr(4)-F(9) bond length is 2.33 Å. In the fifth Pr site, Pr(5) is bonded in a 10-coordinate geometry to one O(13), one O(16), one O(18), one O(4), one O(7), one O(9), one F(10), one F(11), one F(3), and one F(8) atom. The Pr(5)-O(13) bond length is 2.46 Å. The Pr(5)-O(16) bond length is 2.73 Å. The Pr(5)-O(18) bond length is 2.57 Å. The Pr(5)-O(4) bond length is 2.56 Å. The Pr(5)-O(7) bond length is 2.54 Å. The Pr(5)-O(9) bond length is 2.69 Å. The Pr(5)-F(10) bond length is 2.53 Å. The Pr(5)-F(11) bond length is 2.43 Å. The Pr(5)-F(3) bond length is 2.47 Å. The Pr(5)-F(8) bond length is 2.91 Å. In the sixth Pr site, Pr(6) is bonded in a 10-coordinate geometry to one O(11), one O(20), one O(3), one O(6), one F(10), one F(12), one F(3), one F(5), one F(8), and one F(9) atom. The Pr(6)-O(11) bond length is 2.70 Å. The Pr(6)-O(20) bond length is 2.82 Å. The Pr(6)-O(3) bond length is 2.73 Å. The Pr(6)-O(6) bond length is 2.53 Å. The Pr(6)-F(10) bond length is 2.38 Å. The Pr(6)-F(12) bond length is 2.46 Å. The Pr(6)-F(3) bond length is 2.53 Å. The Pr(6)-F(5) bond length is 2.70 Å. The Pr(6)-F(8) bond length is 2.45 Å. The Pr(6)-F(9) bond length is 2.34 Å. In the seventh Pr site, Pr(7) is bonded in a 10-coordinate geometry to one O(12), one O(19), one O(20), one O(3), one F(1), one F(11), one F(12), one F(4), one F(6), and one F(8) atom. The Pr(7)-O(12) bond length is 2.49 Å. The Pr(7)-O(19) bond length is 2.66 Å. The Pr(7)-O(20) bond length is 2.67 Å. The Pr(7)-O(3) bond length is 2.81 Å. The Pr(7)-F(1) bond length is 2.37 Å. The Pr(7)-F(11) bond length is 2.54 Å. The Pr(7)-F(12) bond length is 2.44 Å. The Pr(7)-F(4) bond length is 2.70 Å. The Pr(7)-F(6) bond length is 2.37 Å. The Pr(7)-F(8) bond length is 2.46 Å. In the eighth Pr site, Pr(8) is bonded in a 10-coordinate geometry to one O(1), one O(12), one O(14), one O(19), one O(2), one O(3), one F(2), one F(4), one F(6), and one F(7) atom. The Pr(8)-O(1) bond length is 2.59 Å. The Pr(8)-O(12) bond length is 2.51 Å. The Pr(8)-O(14) bond length is 2.72 Å. The Pr(8)-O(19) bond length is 2.48 Å. The Pr(8)-O(2) bond length is 2.73 Å. The Pr(8)-O(3) bond length is 2.50 Å. The Pr(8)-F(2) bond length is 2.49 Å. The Pr(8)-F(4) bond length is 2.93 Å. The Pr(8)-F(6) bond length is 2.38 Å. The Pr(8)-F(7) bond length is 2.37 Å. There are six inequivalent Se sites. In the first Se site, Se(1) is bonded in a distorted trigonal non-coplanar geometry to one O(13), one O(5), and one O(8) atom. The Se(1)-O(13) bond length is 1.65 Å. The Se(1)-O(5) bond length is 1.78 Å. The Se(1)-O(8) bond length is 1.75 Å. In the second Se site, Se(2) is bonded in a tetrahedral geometry to one O(1), one O(16), one O(17), and one O(9) atom. The Se(2)-O(1) bond length is 1.73 Å. The Se(2)-O(16) bond length is 1.68 Å. The Se(2)-O(17) bond length is 1.59 Å. The Se(2)-O(9) bond length is 1.73 Å. In the third Se site, Se(3) is bonded in a trigonal non-coplanar geometry to one O(11), one O(12), and one O(3) atom. The Se(3)-O(11) bond length is 1.67 Å. The Se(3)-O(12) bond length is 1.78 Å. The Se(3)-O(3) bond length is 1.74 Å. In the fourth Se site, Se(4) is bonded in a distorted T-shaped geometry to one O(10), one O(18), and one O(7) atom. The Se(4)-O(10) bond length is 1.70 Å. The Se(4)-O(18) bond length is 1.80 Å. The Se(4)-O(7) bond length is 1.76 Å. In the fifth Se site, Se(5) is bonded in a trigonal non-coplanar geometry to one O(19), one O(20), and one O(6) atom. The Se(5)-O(19) bond length is 1.71 Å. The Se(5)-O(20) bond length is 1.72 Å. The Se(5)-O(6) bond length is 1.75 Å. In the sixth Se site, Se(6) is bonded in a tetrahedral geometry to one O(14), one O(15), one O(2), and one O(4) atom. The Se(6)-O(14) bond length is 1.76 Å. The Se(6)-O(15) bond length is 1.71 Å. The Se(6)-O(2) bond length is 1.66 Å. The Se(6)-O(4) bond length is 1.67 Å. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Pr(2), one Pr(8), and one Se(2) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to one Pr(8) and one Se(6) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Pr(6), one Pr(7), one Pr(8), and one Se(3) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Pr(3), one Pr(5), and one Se(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Pr(1), one Pr(3), and one Se(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Pr(2), one Pr(6), and one Se(5) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Pr(4), one Pr(5), and one Se(4) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(3), one Pr(4), and one Se(1) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Pr(5) and one Se(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Pr(1), one Pr(3), and one Se(4) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Pr(2), one Pr(6), and one Se(3) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Pr(7), one Pr(8), and one Se(3) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Pr(4), one Pr(5), and one Se(1) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Pr(2), one Pr(8), and one Se(6) atom. In the fifteenth O site, O(15) is bonded in a distorted water-like geometry to one Pr(3) and one Se(6) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Pr(3), one Pr(5), and one Se(2) atom. In the seventeenth O site, O(17) is bonded in a distorted water-like geometry to one Pr(2) and one Se(2) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(4), one Pr(5), and one Se(4) atom. In the nineteenth O site, O(19) is bonded in a 3-coordinate geometry to one Pr(7), one Pr(8), and one Se(5) atom. In the twentieth O site, O(20) is bonded in a distorted single-bond geometry to one Pr(2), one Pr(6), one Pr(7), and one Se(5) atom. There are twelve inequivalent F sites. In the first F site, F(1) is bonded in a trigonal non-coplanar geometry to one Pr(1), one Pr(3), and one Pr(7) atom. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Pr(1), one Pr(2), and one Pr(8) atom. In the third F site, F(3) is bonded in a distorted trigonal planar geometry to one Pr(3), one Pr(5), and one Pr(6) atom. In the fourth F site, F(4) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(4), one Pr(7), and one Pr(8) atom. In the fifth F site, F(5) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Pr(4), and one Pr(6) atom. In the sixth F site, F(6) is bonded in a trigonal planar geometry to one Pr(1), one Pr(7), and one Pr(8) atom. In the seventh F site, F(7) is bonded in a distorted trigonal planar geometry to one Pr(2), one Pr(4), and one Pr(8) atom. In the eighth F site, F(8) is bonded in a 4-coordinate geometry to one Pr(4), one Pr(5), one Pr(6), and one Pr(7) atom. In the ninth F site, F(9) is bonded in a trigonal non-coplanar geometry to one Pr(2), one Pr(4), and one Pr(6) atom. In the tenth F site, F(10) is bonded in a trigonal non-coplanar geometry to one Pr(4), one Pr(5), and one Pr(6) atom. In the eleventh F site, F(11) is bonded in a distorted trigonal planar geometry to one Pr(3), one Pr(5), and one Pr(7) atom. In the twelfth F site, F(12) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(3), one Pr(6), and one Pr(7) atom.