Sr5Cr3F19 crystallizes in the triclinic P1 space group. There are ten inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one F(13), one F(24), one F(29), one F(30), one F(34), one F(4), one F(5), one F(6), and one F(9) atom. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(14), one F(15), one F(2), one F(26), one F(4), one F(5), and one F(8) atom. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one F(17), one F(18), one F(19), one F(20), one F(3), one F(34), and one F(4) atom. In the fourth Sr site, Sr(4) is bonded in a 9-coordinate geometry to one F(11), one F(16), one F(17), one F(18), one F(22), one F(25), one F(27), one F(37), and one F(38) atom. In the fifth Sr site, Sr(5) is bonded in a 9-coordinate geometry to one F(13), one F(16), one F(18), one F(2), one F(24), one F(29), one F(30), one F(6), and one F(9) atom. In the sixth Sr site, Sr(6) is bonded in a 8-coordinate geometry to one F(12), one F(19), one F(21), one F(23), one F(28), one F(31), one F(7), and one F(8) atom. In the seventh Sr site, Sr(7) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(14), one F(15), one F(19), one F(20), one F(21), one F(26), and one F(35) atom. In the eighth Sr site, Sr(8) is bonded in a 7-coordinate geometry to one F(17), one F(18), one F(19), one F(20), one F(3), one F(33), and one F(34) atom. In the ninth Sr site, Sr(9) is bonded in a 7-coordinate geometry to one F(11), one F(22), one F(27), one F(32), one F(33), one F(36), and one F(37) atom. In the tenth Sr site, Sr(10) is bonded in a 9-coordinate geometry to one F(12), one F(23), one F(28), one F(3), one F(31), one F(32), one F(33), one F(7), and one F(8) atom. There are six inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one F(2), one F(25), one F(35), one F(36), one F(8), and one F(9) atom to form corner-sharing CrF6 octahedra. The corner-sharing octahedral tilt angles range from 42-45°. In the second Cr site, Cr(2) is bonded in an octahedral geometry to one F(1), one F(10), one F(16), one F(3), one F(31), and one F(7) atom. In the third Cr site, Cr(3) is bonded in an octahedral geometry to one F(11), one F(12), one F(17), one F(22), one F(23), and one F(5) atom. In the fourth Cr site, Cr(4) is bonded to one F(14), one F(28), one F(29), one F(35), one F(36), and one F(38) atom to form corner-sharing CrF6 octahedra. The corner-sharing octahedral tilt angles range from 42-45°. In the fifth Cr site, Cr(5) is bonded in an octahedral geometry to one F(13), one F(15), one F(20), one F(24), one F(26), and one F(32) atom. In the sixth Cr site, Cr(6) is bonded in an octahedral geometry to one F(21), one F(27), one F(30), one F(34), one F(37), and one F(6) atom. There are thirty-eight inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(2) atom. In the second F site, F(2) is bonded in a distorted trigonal non-coplanar geometry to one Sr(2), one Sr(5), and one Cr(1) atom. In the third F site, F(3) is bonded in a 4-coordinate geometry to one Sr(10), one Sr(3), one Sr(8), and one Cr(2) atom. In the fourth F site, F(4) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Sr(2), and one Sr(3) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one Cr(3) atom. In the sixth F site, F(6) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(5), and one Cr(6) atom. In the seventh F site, F(7) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(2) atom. In the eighth F site, F(8) is bonded in a 1-coordinate geometry to one Sr(10), one Sr(2), one Sr(6), and one Cr(1) atom. In the ninth F site, F(9) is bonded in a 1-coordinate geometry to one Sr(1), one Sr(5), and one Cr(1) atom. In the tenth F site, F(10) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(2) atom. In the eleventh F site, F(11) is bonded in a distorted bent 150 degrees geometry to one Sr(4), one Sr(9), and one Cr(3) atom. In the twelfth F site, F(12) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(3) atom. In the thirteenth F site, F(13) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(5), and one Cr(5) atom. In the fourteenth F site, F(14) is bonded in a 1-coordinate geometry to one Sr(2), one Sr(7), and one Cr(4) atom. In the fifteenth F site, F(15) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(5) atom. In the sixteenth F site, F(16) is bonded in a distorted trigonal planar geometry to one Sr(4), one Sr(5), and one Cr(2) atom. In the seventeenth F site, F(17) is bonded to one Sr(3), one Sr(4), one Sr(8), and one Cr(3) atom to form a mixture of distorted edge and face-sharing FSr3Cr tetrahedra. In the eighteenth F site, F(18) is bonded to one Sr(3), one Sr(4), one Sr(5), and one Sr(8) atom to form distorted FSr4 tetrahedra that share  an edgeedge with one F(19)Sr4 tetrahedra and  a faceface with one F(17)Sr3Cr tetrahedra. In the nineteenth F site, F(19) is bonded to one Sr(3), one Sr(6), one Sr(7), and one Sr(8) atom to form distorted FSr4 tetrahedra that share  an edgeedge with one F(17)Sr3Cr tetrahedra and  an edgeedge with one F(18)Sr4 tetrahedra. In the twentieth F site, F(20) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(7), one Sr(8), and one Cr(5) atom. In the twenty-first F site, F(21) is bonded in a distorted trigonal planar geometry to one Sr(6), one Sr(7), and one Cr(6) atom. In the twenty-second F site, F(22) is bonded in a 3-coordinate geometry to one Sr(4), one Sr(9), and one Cr(3) atom. In the twenty-third F site, F(23) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(3) atom. In the twenty-fourth F site, F(24) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(5), and one Cr(5) atom. In the twenty-fifth F site, F(25) is bonded in a distorted bent 150 degrees geometry to one Sr(4) and one Cr(1) atom. In the twenty-sixth F site, F(26) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(5) atom. In the twenty-seventh F site, F(27) is bonded in a 3-coordinate geometry to one Sr(4), one Sr(9), and one Cr(6) atom. In the twenty-eighth F site, F(28) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(4) atom. In the twenty-ninth F site, F(29) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(5), and one Cr(4) atom. In the thirtieth F site, F(30) is bonded in a distorted bent 150 degrees geometry to one Sr(1), one Sr(5), and one Cr(6) atom. In the thirty-first F site, F(31) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(2) atom. In the thirty-second F site, F(32) is bonded in a distorted trigonal planar geometry to one Sr(10), one Sr(9), and one Cr(5) atom. In the thirty-third F site, F(33) is bonded in a distorted trigonal non-coplanar geometry to one Sr(10), one Sr(8), and one Sr(9) atom. In the thirty-fourth F site, F(34) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(3), one Sr(8), and one Cr(6) atom. In the thirty-fifth F site, F(35) is bonded in a distorted bent 150 degrees geometry to one Sr(7), one Cr(1), and one Cr(4) atom. In the thirty-sixth F site, F(36) is bonded in a 3-coordinate geometry to one Sr(9), one Cr(1), and one Cr(4) atom. In the thirty-seventh F site, F(37) is bonded in a 3-coordinate geometry to one Sr(4), one Sr(9), and one Cr(6) atom. In the thirty-eighth F site, F(38) is bonded in a distorted linear geometry to one Sr(4) and one Cr(4) atom.
Sr5Cr3F19 crystallizes in the triclinic P1 space group. There are ten inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one F(13), one F(24), one F(29), one F(30), one F(34), one F(4), one F(5), one F(6), and one F(9) atom. The Sr(1)-F(13) bond length is 2.51 Å. The Sr(1)-F(24) bond length is 2.45 Å. The Sr(1)-F(29) bond length is 2.54 Å. The Sr(1)-F(30) bond length is 3.01 Å. The Sr(1)-F(34) bond length is 2.83 Å. The Sr(1)-F(4) bond length is 2.56 Å. The Sr(1)-F(5) bond length is 2.57 Å. The Sr(1)-F(6) bond length is 2.76 Å. The Sr(1)-F(9) bond length is 2.58 Å. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(14), one F(15), one F(2), one F(26), one F(4), one F(5), and one F(8) atom. The Sr(2)-F(1) bond length is 2.78 Å. The Sr(2)-F(10) bond length is 2.75 Å. The Sr(2)-F(14) bond length is 2.75 Å. The Sr(2)-F(15) bond length is 2.47 Å. The Sr(2)-F(2) bond length is 2.55 Å. The Sr(2)-F(26) bond length is 2.52 Å. The Sr(2)-F(4) bond length is 2.38 Å. The Sr(2)-F(5) bond length is 2.61 Å. The Sr(2)-F(8) bond length is 2.78 Å. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one F(17), one F(18), one F(19), one F(20), one F(3), one F(34), and one F(4) atom. The Sr(3)-F(17) bond length is 2.54 Å. The Sr(3)-F(18) bond length is 2.63 Å. The Sr(3)-F(19) bond length is 2.75 Å. The Sr(3)-F(20) bond length is 2.48 Å. The Sr(3)-F(3) bond length is 2.49 Å. The Sr(3)-F(34) bond length is 2.54 Å. The Sr(3)-F(4) bond length is 2.50 Å. In the fourth Sr site, Sr(4) is bonded in a 9-coordinate geometry to one F(11), one F(16), one F(17), one F(18), one F(22), one F(25), one F(27), one F(37), and one F(38) atom. The Sr(4)-F(11) bond length is 2.89 Å. The Sr(4)-F(16) bond length is 2.55 Å. The Sr(4)-F(17) bond length is 2.68 Å. The Sr(4)-F(18) bond length is 2.64 Å. The Sr(4)-F(22) bond length is 2.82 Å. The Sr(4)-F(25) bond length is 2.51 Å. The Sr(4)-F(27) bond length is 2.48 Å. The Sr(4)-F(37) bond length is 2.48 Å. The Sr(4)-F(38) bond length is 2.44 Å. In the fifth Sr site, Sr(5) is bonded in a 9-coordinate geometry to one F(13), one F(16), one F(18), one F(2), one F(24), one F(29), one F(30), one F(6), and one F(9) atom. The Sr(5)-F(13) bond length is 2.65 Å. The Sr(5)-F(16) bond length is 2.60 Å. The Sr(5)-F(18) bond length is 2.39 Å. The Sr(5)-F(2) bond length is 2.62 Å. The Sr(5)-F(24) bond length is 2.82 Å. The Sr(5)-F(29) bond length is 3.03 Å. The Sr(5)-F(30) bond length is 2.46 Å. The Sr(5)-F(6) bond length is 2.56 Å. The Sr(5)-F(9) bond length is 2.90 Å. In the sixth Sr site, Sr(6) is bonded in a 8-coordinate geometry to one F(12), one F(19), one F(21), one F(23), one F(28), one F(31), one F(7), and one F(8) atom. The Sr(6)-F(12) bond length is 2.75 Å. The Sr(6)-F(19) bond length is 2.38 Å. The Sr(6)-F(21) bond length is 2.62 Å. The Sr(6)-F(23) bond length is 2.62 Å. The Sr(6)-F(28) bond length is 2.75 Å. The Sr(6)-F(31) bond length is 2.50 Å. The Sr(6)-F(7) bond length is 2.50 Å. The Sr(6)-F(8) bond length is 2.59 Å. In the seventh Sr site, Sr(7) is bonded in a 9-coordinate geometry to one F(1), one F(10), one F(14), one F(15), one F(19), one F(20), one F(21), one F(26), and one F(35) atom. The Sr(7)-F(1) bond length is 2.46 Å. The Sr(7)-F(10) bond length is 2.44 Å. The Sr(7)-F(14) bond length is 2.63 Å. The Sr(7)-F(15) bond length is 2.77 Å. The Sr(7)-F(19) bond length is 2.62 Å. The Sr(7)-F(20) bond length is 2.74 Å. The Sr(7)-F(21) bond length is 2.60 Å. The Sr(7)-F(26) bond length is 2.83 Å. The Sr(7)-F(35) bond length is 3.19 Å. In the eighth Sr site, Sr(8) is bonded in a 7-coordinate geometry to one F(17), one F(18), one F(19), one F(20), one F(3), one F(33), and one F(34) atom. The Sr(8)-F(17) bond length is 2.47 Å. The Sr(8)-F(18) bond length is 2.84 Å. The Sr(8)-F(19) bond length is 2.66 Å. The Sr(8)-F(20) bond length is 2.53 Å. The Sr(8)-F(3) bond length is 2.51 Å. The Sr(8)-F(33) bond length is 2.52 Å. The Sr(8)-F(34) bond length is 2.51 Å. In the ninth Sr site, Sr(9) is bonded in a 7-coordinate geometry to one F(11), one F(22), one F(27), one F(32), one F(33), one F(36), and one F(37) atom. The Sr(9)-F(11) bond length is 2.46 Å. The Sr(9)-F(22) bond length is 2.48 Å. The Sr(9)-F(27) bond length is 2.70 Å. The Sr(9)-F(32) bond length is 2.60 Å. The Sr(9)-F(33) bond length is 2.35 Å. The Sr(9)-F(36) bond length is 2.71 Å. The Sr(9)-F(37) bond length is 2.67 Å. In the tenth Sr site, Sr(10) is bonded in a 9-coordinate geometry to one F(12), one F(23), one F(28), one F(3), one F(31), one F(32), one F(33), one F(7), and one F(8) atom. The Sr(10)-F(12) bond length is 2.45 Å. The Sr(10)-F(23) bond length is 2.51 Å. The Sr(10)-F(28) bond length is 2.56 Å. The Sr(10)-F(3) bond length is 2.81 Å. The Sr(10)-F(31) bond length is 2.74 Å. The Sr(10)-F(32) bond length is 2.57 Å. The Sr(10)-F(33) bond length is 2.52 Å. The Sr(10)-F(7) bond length is 2.83 Å. The Sr(10)-F(8) bond length is 3.19 Å. There are six inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one F(2), one F(25), one F(35), one F(36), one F(8), and one F(9) atom to form corner-sharing CrF6 octahedra. The corner-sharing octahedral tilt angles range from 42-45°. The Cr(1)-F(2) bond length is 1.93 Å. The Cr(1)-F(25) bond length is 1.92 Å. The Cr(1)-F(35) bond length is 1.97 Å. The Cr(1)-F(36) bond length is 2.01 Å. The Cr(1)-F(8) bond length is 1.94 Å. The Cr(1)-F(9) bond length is 1.92 Å. In the second Cr site, Cr(2) is bonded in an octahedral geometry to one F(1), one F(10), one F(16), one F(3), one F(31), and one F(7) atom. The Cr(2)-F(1) bond length is 1.96 Å. The Cr(2)-F(10) bond length is 1.96 Å. The Cr(2)-F(16) bond length is 1.95 Å. The Cr(2)-F(3) bond length is 1.94 Å. The Cr(2)-F(31) bond length is 1.94 Å. The Cr(2)-F(7) bond length is 1.95 Å. In the third Cr site, Cr(3) is bonded in an octahedral geometry to one F(11), one F(12), one F(17), one F(22), one F(23), and one F(5) atom. The Cr(3)-F(11) bond length is 1.94 Å. The Cr(3)-F(12) bond length is 1.95 Å. The Cr(3)-F(17) bond length is 1.94 Å. The Cr(3)-F(22) bond length is 1.94 Å. The Cr(3)-F(23) bond length is 1.97 Å. The Cr(3)-F(5) bond length is 1.94 Å. In the fourth Cr site, Cr(4) is bonded to one F(14), one F(28), one F(29), one F(35), one F(36), and one F(38) atom to form corner-sharing CrF6 octahedra. The corner-sharing octahedral tilt angles range from 42-45°. The Cr(4)-F(14) bond length is 1.94 Å. The Cr(4)-F(28) bond length is 1.94 Å. The Cr(4)-F(29) bond length is 1.92 Å. The Cr(4)-F(35) bond length is 1.97 Å. The Cr(4)-F(36) bond length is 2.02 Å. The Cr(4)-F(38) bond length is 1.90 Å. In the fifth Cr site, Cr(5) is bonded in an octahedral geometry to one F(13), one F(15), one F(20), one F(24), one F(26), and one F(32) atom. The Cr(5)-F(13) bond length is 1.96 Å. The Cr(5)-F(15) bond length is 1.94 Å. The Cr(5)-F(20) bond length is 1.94 Å. The Cr(5)-F(24) bond length is 1.94 Å. The Cr(5)-F(26) bond length is 1.96 Å. The Cr(5)-F(32) bond length is 1.95 Å. In the sixth Cr site, Cr(6) is bonded in an octahedral geometry to one F(21), one F(27), one F(30), one F(34), one F(37), and one F(6) atom. The Cr(6)-F(21) bond length is 1.95 Å. The Cr(6)-F(27) bond length is 1.96 Å. The Cr(6)-F(30) bond length is 1.93 Å. The Cr(6)-F(34) bond length is 1.95 Å. The Cr(6)-F(37) bond length is 1.96 Å. The Cr(6)-F(6) bond length is 1.96 Å. There are thirty-eight inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(2) atom. In the second F site, F(2) is bonded in a distorted trigonal non-coplanar geometry to one Sr(2), one Sr(5), and one Cr(1) atom. In the third F site, F(3) is bonded in a 4-coordinate geometry to one Sr(10), one Sr(3), one Sr(8), and one Cr(2) atom. In the fourth F site, F(4) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Sr(2), and one Sr(3) atom. In the fifth F site, F(5) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one Cr(3) atom. In the sixth F site, F(6) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(5), and one Cr(6) atom. In the seventh F site, F(7) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(2) atom. In the eighth F site, F(8) is bonded in a 1-coordinate geometry to one Sr(10), one Sr(2), one Sr(6), and one Cr(1) atom. In the ninth F site, F(9) is bonded in a 1-coordinate geometry to one Sr(1), one Sr(5), and one Cr(1) atom. In the tenth F site, F(10) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(2) atom. In the eleventh F site, F(11) is bonded in a distorted bent 150 degrees geometry to one Sr(4), one Sr(9), and one Cr(3) atom. In the twelfth F site, F(12) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(3) atom. In the thirteenth F site, F(13) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(5), and one Cr(5) atom. In the fourteenth F site, F(14) is bonded in a 1-coordinate geometry to one Sr(2), one Sr(7), and one Cr(4) atom. In the fifteenth F site, F(15) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(5) atom. In the sixteenth F site, F(16) is bonded in a distorted trigonal planar geometry to one Sr(4), one Sr(5), and one Cr(2) atom. In the seventeenth F site, F(17) is bonded to one Sr(3), one Sr(4), one Sr(8), and one Cr(3) atom to form a mixture of distorted edge and face-sharing FSr3Cr tetrahedra. In the eighteenth F site, F(18) is bonded to one Sr(3), one Sr(4), one Sr(5), and one Sr(8) atom to form distorted FSr4 tetrahedra that share  an edgeedge with one F(19)Sr4 tetrahedra and  a faceface with one F(17)Sr3Cr tetrahedra. In the nineteenth F site, F(19) is bonded to one Sr(3), one Sr(6), one Sr(7), and one Sr(8) atom to form distorted FSr4 tetrahedra that share  an edgeedge with one F(17)Sr3Cr tetrahedra and  an edgeedge with one F(18)Sr4 tetrahedra. In the twentieth F site, F(20) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(7), one Sr(8), and one Cr(5) atom. In the twenty-first F site, F(21) is bonded in a distorted trigonal planar geometry to one Sr(6), one Sr(7), and one Cr(6) atom. In the twenty-second F site, F(22) is bonded in a 3-coordinate geometry to one Sr(4), one Sr(9), and one Cr(3) atom. In the twenty-third F site, F(23) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(3) atom. In the twenty-fourth F site, F(24) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(5), and one Cr(5) atom. In the twenty-fifth F site, F(25) is bonded in a distorted bent 150 degrees geometry to one Sr(4) and one Cr(1) atom. In the twenty-sixth F site, F(26) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(7), and one Cr(5) atom. In the twenty-seventh F site, F(27) is bonded in a 3-coordinate geometry to one Sr(4), one Sr(9), and one Cr(6) atom. In the twenty-eighth F site, F(28) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(4) atom. In the twenty-ninth F site, F(29) is bonded in a 2-coordinate geometry to one Sr(1), one Sr(5), and one Cr(4) atom. In the thirtieth F site, F(30) is bonded in a distorted bent 150 degrees geometry to one Sr(1), one Sr(5), and one Cr(6) atom. In the thirty-first F site, F(31) is bonded in a 3-coordinate geometry to one Sr(10), one Sr(6), and one Cr(2) atom. In the thirty-second F site, F(32) is bonded in a distorted trigonal planar geometry to one Sr(10), one Sr(9), and one Cr(5) atom. In the thirty-third F site, F(33) is bonded in a distorted trigonal non-coplanar geometry to one Sr(10), one Sr(8), and one Sr(9) atom. In the thirty-fourth F site, F(34) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(3), one Sr(8), and one Cr(6) atom. In the thirty-fifth F site, F(35) is bonded in a distorted bent 150 degrees geometry to one Sr(7), one Cr(1), and one Cr(4) atom. In the thirty-sixth F site, F(36) is bonded in a 3-coordinate geometry to one Sr(9), one Cr(1), and one Cr(4) atom. In the thirty-seventh F site, F(37) is bonded in a 3-coordinate geometry to one Sr(4), one Sr(9), and one Cr(6) atom. In the thirty-eighth F site, F(38) is bonded in a distorted linear geometry to one Sr(4) and one Cr(4) atom.