KNa(BiO3)4 crystallizes in the orthorhombic Amm2 space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(1), and four equivalent O(4) atoms. Na(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. Bi(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 20-36°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to one K(1) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(1) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one K(1), one Na(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Na(1) and two equivalent Bi(1) atoms.
KNa(BiO3)4 crystallizes in the orthorhombic Amm2 space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(3), four equivalent O(1), and four equivalent O(4) atoms. Both K(1)-O(3) bond lengths are 2.98 Å. All K(1)-O(1) bond lengths are 2.68 Å. There are two shorter (2.82 Å) and two longer (3.10 Å) K(1)-O(4) bond lengths. Na(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. Both Na(1)-O(2) bond lengths are 2.39 Å. Both Na(1)-O(3) bond lengths are 2.87 Å. Both Na(1)-O(5) bond lengths are 2.36 Å. Bi(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 20-36°. The Bi(1)-O(2) bond length is 2.15 Å. The Bi(1)-O(3) bond length is 2.16 Å. The Bi(1)-O(4) bond length is 2.16 Å. The Bi(1)-O(5) bond length is 2.15 Å. Both Bi(1)-O(1) bond lengths are 2.14 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a T-shaped geometry to one K(1) and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Na(1) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one K(1), one Na(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Bi(1) atoms. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Na(1) and two equivalent Bi(1) atoms.