Ca5TiSn4(BO3)10 is Calcite-derived structured and crystallizes in the triclinic P-1 space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(11), one O(14), one O(4), and one O(7) atom to form CaO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, and corners with four equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-59°. In the second Ca site, Ca(2) is bonded to one O(12), one O(13), one O(2), one O(3), one O(8), and one O(9) atom to form CaO6 octahedra that share  a cornercorner with one Sn(1)O6 octahedra and corners with five equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. In the third Ca site, Ca(3) is bonded to two equivalent O(15), two equivalent O(5), and two equivalent O(6) atoms to form CaO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra and corners with four equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. Ti(1) is bonded to two equivalent O(10), two equivalent O(15), and two equivalent O(5) atoms to form TiO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra and corners with four equivalent Ca(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-59°. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(15), and one O(4) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(13), one O(2), and one O(8) atom. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(14), one O(3), and one O(9) atom. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(11), one O(5), and one O(6) atom. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(1), one O(12), and one O(7) atom. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(1), one O(11), one O(14), one O(4), one O(6), and one O(9) atom to form SnO6 octahedra that share  a cornercorner with one Ca(2)O6 octahedra,  a cornercorner with one Ca(3)O6 octahedra, and corners with four equivalent Ca(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-58°. In the second Sn site, Sn(2) is bonded to one O(12), one O(13), one O(2), one O(3), one O(7), and one O(8) atom to form SnO6 octahedra that share  a cornercorner with one Ca(1)O6 octahedra and corners with five equivalent Ca(2)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(5), and one Sn(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(2), and one Sn(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(3), and one Sn(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(1), and one Sn(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Ca(3), one Ti(1), and one B(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ca(3), one B(4), and one Sn(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(5), and one Sn(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(2), and one Sn(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(3), and one Sn(1) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Ca(1), one Ti(1), and one B(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(4), and one Sn(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(5), and one Sn(2) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(2), and one Sn(2) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(3), and one Sn(1) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one Ca(3), one Ti(1), and one B(1) atom.
Ca5TiSn4(BO3)10 is Calcite-derived structured and crystallizes in the triclinic P-1 space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(11), one O(14), one O(4), and one O(7) atom to form CaO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Sn(2)O6 octahedra, and corners with four equivalent Sn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-59°. The Ca(1)-O(1) bond length is 2.39 Å. The Ca(1)-O(10) bond length is 2.47 Å. The Ca(1)-O(11) bond length is 2.41 Å. The Ca(1)-O(14) bond length is 2.39 Å. The Ca(1)-O(4) bond length is 2.40 Å. The Ca(1)-O(7) bond length is 2.41 Å. In the second Ca site, Ca(2) is bonded to one O(12), one O(13), one O(2), one O(3), one O(8), and one O(9) atom to form CaO6 octahedra that share  a cornercorner with one Sn(1)O6 octahedra and corners with five equivalent Sn(2)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. The Ca(2)-O(12) bond length is 2.38 Å. The Ca(2)-O(13) bond length is 2.38 Å. The Ca(2)-O(2) bond length is 2.38 Å. The Ca(2)-O(3) bond length is 2.38 Å. The Ca(2)-O(8) bond length is 2.38 Å. The Ca(2)-O(9) bond length is 2.39 Å. In the third Ca site, Ca(3) is bonded to two equivalent O(15), two equivalent O(5), and two equivalent O(6) atoms to form CaO6 octahedra that share corners with two equivalent Sn(1)O6 octahedra and corners with four equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. Both Ca(3)-O(15) bond lengths are 2.46 Å. Both Ca(3)-O(5) bond lengths are 2.46 Å. Both Ca(3)-O(6) bond lengths are 2.37 Å. Ti(1) is bonded to two equivalent O(10), two equivalent O(15), and two equivalent O(5) atoms to form TiO6 octahedra that share corners with two equivalent Ca(1)O6 octahedra and corners with four equivalent Ca(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-59°. Both Ti(1)-O(10) bond lengths are 1.99 Å. Both Ti(1)-O(15) bond lengths are 1.99 Å. Both Ti(1)-O(5) bond lengths are 2.00 Å. There are five inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(10), one O(15), and one O(4) atom. The B(1)-O(10) bond length is 1.39 Å. The B(1)-O(15) bond length is 1.39 Å. The B(1)-O(4) bond length is 1.39 Å. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(13), one O(2), and one O(8) atom. The B(2)-O(13) bond length is 1.39 Å. The B(2)-O(2) bond length is 1.39 Å. The B(2)-O(8) bond length is 1.39 Å. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(14), one O(3), and one O(9) atom. The B(3)-O(14) bond length is 1.39 Å. The B(3)-O(3) bond length is 1.39 Å. The B(3)-O(9) bond length is 1.39 Å. In the fourth B site, B(4) is bonded in a trigonal planar geometry to one O(11), one O(5), and one O(6) atom. The B(4)-O(11) bond length is 1.39 Å. The B(4)-O(5) bond length is 1.38 Å. The B(4)-O(6) bond length is 1.39 Å. In the fifth B site, B(5) is bonded in a trigonal planar geometry to one O(1), one O(12), and one O(7) atom. The B(5)-O(1) bond length is 1.39 Å. The B(5)-O(12) bond length is 1.39 Å. The B(5)-O(7) bond length is 1.39 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one O(1), one O(11), one O(14), one O(4), one O(6), and one O(9) atom to form SnO6 octahedra that share  a cornercorner with one Ca(2)O6 octahedra,  a cornercorner with one Ca(3)O6 octahedra, and corners with four equivalent Ca(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 57-58°. The Sn(1)-O(1) bond length is 2.09 Å. The Sn(1)-O(11) bond length is 2.09 Å. The Sn(1)-O(14) bond length is 2.09 Å. The Sn(1)-O(4) bond length is 2.08 Å. The Sn(1)-O(6) bond length is 2.09 Å. The Sn(1)-O(9) bond length is 2.09 Å. In the second Sn site, Sn(2) is bonded to one O(12), one O(13), one O(2), one O(3), one O(7), and one O(8) atom to form SnO6 octahedra that share  a cornercorner with one Ca(1)O6 octahedra and corners with five equivalent Ca(2)O6 octahedra. The corner-sharing octahedral tilt angles are 57°. The Sn(2)-O(12) bond length is 2.09 Å. The Sn(2)-O(13) bond length is 2.09 Å. The Sn(2)-O(2) bond length is 2.09 Å. The Sn(2)-O(3) bond length is 2.09 Å. The Sn(2)-O(7) bond length is 2.09 Å. The Sn(2)-O(8) bond length is 2.09 Å. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(5), and one Sn(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(2), and one Sn(2) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(3), and one Sn(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(1), and one Sn(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Ca(3), one Ti(1), and one B(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ca(3), one B(4), and one Sn(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(5), and one Sn(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(2), and one Sn(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(3), and one Sn(1) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Ca(1), one Ti(1), and one B(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(4), and one Sn(1) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(5), and one Sn(2) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Ca(2), one B(2), and one Sn(2) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal planar geometry to one Ca(1), one B(3), and one Sn(1) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal planar geometry to one Ca(3), one Ti(1), and one B(1) atom.