Ta2InBiO8 crystallizes in the triclinic P-1 space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form corner-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 30-44°. In the second Ta site, Ta(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form corner-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 30-44°. In(1) is bonded in a 4-coordinate geometry to one O(2), one O(5), one O(7), and two equivalent O(6) atoms. Bi(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Ta(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ta(2), one In(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ta(1), one Ta(2), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Ta(1) and one Ta(2) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Ta(1), one In(1), and one Bi(1) atom. In the sixth O site, O(6) is bonded to one Ta(2), two equivalent In(1), and one Bi(1) atom to form distorted edge-sharing OTaIn2Bi tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ta(1), one In(1), and one Bi(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Ta(2) atom.
Ta2InBiO8 crystallizes in the triclinic P-1 space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to one O(1), one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form corner-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 30-44°. The Ta(1)-O(1) bond length is 1.97 Å. The Ta(1)-O(3) bond length is 1.96 Å. The Ta(1)-O(4) bond length is 2.02 Å. The Ta(1)-O(5) bond length is 2.10 Å. The Ta(1)-O(7) bond length is 1.95 Å. The Ta(1)-O(8) bond length is 2.04 Å. In the second Ta site, Ta(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(6), and one O(8) atom to form corner-sharing TaO6 octahedra. The corner-sharing octahedral tilt angles range from 30-44°. The Ta(2)-O(1) bond length is 1.98 Å. The Ta(2)-O(2) bond length is 2.05 Å. The Ta(2)-O(3) bond length is 2.10 Å. The Ta(2)-O(4) bond length is 1.90 Å. The Ta(2)-O(6) bond length is 2.14 Å. The Ta(2)-O(8) bond length is 1.90 Å. In(1) is bonded in a 4-coordinate geometry to one O(2), one O(5), one O(7), and two equivalent O(6) atoms. The In(1)-O(2) bond length is 2.13 Å. The In(1)-O(5) bond length is 2.20 Å. The In(1)-O(7) bond length is 2.18 Å. There is one shorter (2.12 Å) and one longer (2.63 Å) In(1)-O(6) bond length. Bi(1) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and one O(7) atom. The Bi(1)-O(2) bond length is 2.36 Å. The Bi(1)-O(3) bond length is 2.49 Å. The Bi(1)-O(5) bond length is 2.23 Å. The Bi(1)-O(6) bond length is 2.26 Å. The Bi(1)-O(7) bond length is 2.49 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Ta(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ta(2), one In(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ta(1), one Ta(2), and one Bi(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Ta(1) and one Ta(2) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Ta(1), one In(1), and one Bi(1) atom. In the sixth O site, O(6) is bonded to one Ta(2), two equivalent In(1), and one Bi(1) atom to form distorted edge-sharing OTaIn2Bi tetrahedra. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Ta(1), one In(1), and one Bi(1) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Ta(2) atom.