Ba8In6O17 crystallizes in the triclinic P-1 space group. There are four inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to one O(3), one O(5), one O(8), one O(9), and two equivalent O(2) atoms. In the third Ba site, Ba(3) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(9), and two equivalent O(8) atoms. In the fourth Ba site, Ba(4) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. There are three inequivalent In sites. In the first In site, In(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(9) atom to form corner-sharing InO5 square pyramids. In the second In site, In(2) is bonded to one O(1), one O(10), one O(4), one O(6), and one O(7) atom to form corner-sharing InO5 trigonal bipyramids. In the third In site, In(3) is bonded to one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form corner-sharing InO5 square pyramids. There are ten inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ba(1), two equivalent Ba(4), and two equivalent In(2) atoms to form a mixture of face, corner, and edge-sharing OBa4In2 octahedra. The corner-sharing octahedral tilt angles range from 3-7°. In the second O site, O(2) is bonded to one Ba(3), two equivalent Ba(2), and one In(1) atom to form distorted OBa3In tetrahedra that share corners with two equivalent O(3)Ba4In2 octahedra, corners with two equivalent O(9)Ba4In2 octahedra, corners with two equivalent O(8)Ba3In tetrahedra,  an edgeedge with one O(3)Ba4In2 octahedra,  an edgeedge with one O(9)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 36-61°. In the third O site, O(3) is bonded to one Ba(1), one Ba(2), one Ba(3), one Ba(4), one In(1), and one In(3) atom to form distorted OBa4In2 octahedra that share corners with two equivalent O(10)Ba4In2 octahedra, corners with two equivalent O(7)Ba4In2 octahedra, corners with two equivalent O(9)Ba4In2 octahedra, corners with two equivalent O(2)Ba3In tetrahedra, corners with two equivalent O(8)Ba3In tetrahedra,  an edgeedge with one O(1)Ba4In2 octahedra, edges with two equivalent O(9)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 3-64°. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one In(1), and one In(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one In(1), and one In(3) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one In(2), and one In(3) atom. In the seventh O site, O(7) is bonded to two equivalent Ba(1), two equivalent Ba(4), and two equivalent In(2) atoms to form a mixture of distorted face and corner-sharing OBa4In2 octahedra. The corner-sharing octahedral tilt angles range from 63-66°. In the eighth O site, O(8) is bonded to one Ba(2), two equivalent Ba(3), and one In(3) atom to form distorted OBa3In tetrahedra that share corners with two equivalent O(3)Ba4In2 octahedra, corners with two equivalent O(9)Ba4In2 octahedra, corners with two equivalent O(2)Ba3In tetrahedra,  an edgeedge with one O(3)Ba4In2 octahedra,  an edgeedge with one O(9)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 35-62°. In the ninth O site, O(9) is bonded to one Ba(1), one Ba(2), one Ba(3), one Ba(4), one In(1), and one In(3) atom to form distorted OBa4In2 octahedra that share corners with two equivalent O(1)Ba4In2 octahedra, corners with two equivalent O(3)Ba4In2 octahedra, corners with two equivalent O(7)Ba4In2 octahedra, corners with two equivalent O(2)Ba3In tetrahedra, corners with two equivalent O(8)Ba3In tetrahedra,  an edgeedge with one O(10)Ba4In2 octahedra, edges with two equivalent O(3)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 3-66°. In the tenth O site, O(10) is bonded to two equivalent Ba(1), two equivalent Ba(4), and two equivalent In(2) atoms to form a mixture of face, corner, and edge-sharing OBa4In2 octahedra. The corner-sharing octahedral tilt angles range from 3-7°.
Ba8In6O17 crystallizes in the triclinic P-1 space group. There are four inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. The Ba(1)-O(1) bond length is 2.98 Å. The Ba(1)-O(10) bond length is 2.99 Å. The Ba(1)-O(3) bond length is 3.00 Å. The Ba(1)-O(4) bond length is 2.72 Å. The Ba(1)-O(6) bond length is 2.68 Å. The Ba(1)-O(7) bond length is 3.04 Å. The Ba(1)-O(9) bond length is 2.93 Å. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to one O(3), one O(5), one O(8), one O(9), and two equivalent O(2) atoms. The Ba(2)-O(3) bond length is 2.89 Å. The Ba(2)-O(5) bond length is 2.69 Å. The Ba(2)-O(8) bond length is 2.64 Å. The Ba(2)-O(9) bond length is 3.11 Å. There is one shorter (2.64 Å) and one longer (2.70 Å) Ba(2)-O(2) bond length. In the third Ba site, Ba(3) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(9), and two equivalent O(8) atoms. The Ba(3)-O(2) bond length is 2.64 Å. The Ba(3)-O(3) bond length is 2.96 Å. The Ba(3)-O(5) bond length is 2.67 Å. The Ba(3)-O(9) bond length is 3.11 Å. There is one shorter (2.64 Å) and one longer (2.68 Å) Ba(3)-O(8) bond length. In the fourth Ba site, Ba(4) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. The Ba(4)-O(1) bond length is 2.99 Å. The Ba(4)-O(10) bond length is 3.01 Å. The Ba(4)-O(3) bond length is 3.07 Å. The Ba(4)-O(4) bond length is 2.67 Å. The Ba(4)-O(6) bond length is 2.73 Å. The Ba(4)-O(7) bond length is 3.05 Å. The Ba(4)-O(9) bond length is 2.91 Å. There are three inequivalent In sites. In the first In site, In(1) is bonded to one O(2), one O(3), one O(4), one O(5), and one O(9) atom to form corner-sharing InO5 square pyramids. The In(1)-O(2) bond length is 2.12 Å. The In(1)-O(3) bond length is 2.22 Å. The In(1)-O(4) bond length is 2.18 Å. The In(1)-O(5) bond length is 2.07 Å. The In(1)-O(9) bond length is 2.20 Å. In the second In site, In(2) is bonded to one O(1), one O(10), one O(4), one O(6), and one O(7) atom to form corner-sharing InO5 trigonal bipyramids. The In(2)-O(1) bond length is 2.20 Å. The In(2)-O(10) bond length is 2.20 Å. The In(2)-O(4) bond length is 2.13 Å. The In(2)-O(6) bond length is 2.13 Å. The In(2)-O(7) bond length is 2.06 Å. In the third In site, In(3) is bonded to one O(3), one O(5), one O(6), one O(8), and one O(9) atom to form corner-sharing InO5 square pyramids. The In(3)-O(3) bond length is 2.23 Å. The In(3)-O(5) bond length is 2.07 Å. The In(3)-O(6) bond length is 2.17 Å. The In(3)-O(8) bond length is 2.12 Å. The In(3)-O(9) bond length is 2.21 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ba(1), two equivalent Ba(4), and two equivalent In(2) atoms to form a mixture of face, corner, and edge-sharing OBa4In2 octahedra. The corner-sharing octahedral tilt angles range from 3-7°. In the second O site, O(2) is bonded to one Ba(3), two equivalent Ba(2), and one In(1) atom to form distorted OBa3In tetrahedra that share corners with two equivalent O(3)Ba4In2 octahedra, corners with two equivalent O(9)Ba4In2 octahedra, corners with two equivalent O(8)Ba3In tetrahedra,  an edgeedge with one O(3)Ba4In2 octahedra,  an edgeedge with one O(9)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 36-61°. In the third O site, O(3) is bonded to one Ba(1), one Ba(2), one Ba(3), one Ba(4), one In(1), and one In(3) atom to form distorted OBa4In2 octahedra that share corners with two equivalent O(10)Ba4In2 octahedra, corners with two equivalent O(7)Ba4In2 octahedra, corners with two equivalent O(9)Ba4In2 octahedra, corners with two equivalent O(2)Ba3In tetrahedra, corners with two equivalent O(8)Ba3In tetrahedra,  an edgeedge with one O(1)Ba4In2 octahedra, edges with two equivalent O(9)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 3-64°. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one In(1), and one In(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one In(1), and one In(3) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one In(2), and one In(3) atom. In the seventh O site, O(7) is bonded to two equivalent Ba(1), two equivalent Ba(4), and two equivalent In(2) atoms to form a mixture of distorted face and corner-sharing OBa4In2 octahedra. The corner-sharing octahedral tilt angles range from 63-66°. In the eighth O site, O(8) is bonded to one Ba(2), two equivalent Ba(3), and one In(3) atom to form distorted OBa3In tetrahedra that share corners with two equivalent O(3)Ba4In2 octahedra, corners with two equivalent O(9)Ba4In2 octahedra, corners with two equivalent O(2)Ba3In tetrahedra,  an edgeedge with one O(3)Ba4In2 octahedra,  an edgeedge with one O(9)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 35-62°. In the ninth O site, O(9) is bonded to one Ba(1), one Ba(2), one Ba(3), one Ba(4), one In(1), and one In(3) atom to form distorted OBa4In2 octahedra that share corners with two equivalent O(1)Ba4In2 octahedra, corners with two equivalent O(3)Ba4In2 octahedra, corners with two equivalent O(7)Ba4In2 octahedra, corners with two equivalent O(2)Ba3In tetrahedra, corners with two equivalent O(8)Ba3In tetrahedra,  an edgeedge with one O(10)Ba4In2 octahedra, edges with two equivalent O(3)Ba4In2 octahedra,  an edgeedge with one O(2)Ba3In tetrahedra, and  an edgeedge with one O(8)Ba3In tetrahedra. The corner-sharing octahedral tilt angles range from 3-66°. In the tenth O site, O(10) is bonded to two equivalent Ba(1), two equivalent Ba(4), and two equivalent In(2) atoms to form a mixture of face, corner, and edge-sharing OBa4In2 octahedra. The corner-sharing octahedral tilt angles range from 3-7°.