KGa(SeO3)4 crystallizes in the orthorhombic Amm2 space group. K(1) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(5) atoms. Ga(1) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Se(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 SeO6 octahedra. The corner-sharing octahedral tilt angles range from 25-45°. 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 Se(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one K(1), one Ga(1), and two equivalent Se(1) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one Ga(1) and two equivalent Se(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Ga(1) and two equivalent Se(1) atoms. In the fifth O site, O(5) is bonded in a distorted square co-planar geometry to two equivalent K(1) and two equivalent Se(1) atoms.
KGa(SeO3)4 crystallizes in the orthorhombic Amm2 space group. K(1) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(5) atoms. Both K(1)-O(2) bond lengths are 2.73 Å. All K(1)-O(1) bond lengths are 2.54 Å. There are two shorter (2.62 Å) and two longer (2.74 Å) K(1)-O(5) bond lengths. Ga(1) is bonded in a 4-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Ga(1)-O(2) bond lengths are 2.53 Å. Both Ga(1)-O(3) bond lengths are 1.97 Å. Both Ga(1)-O(4) bond lengths are 1.97 Å. Se(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 SeO6 octahedra. The corner-sharing octahedral tilt angles range from 25-45°. The Se(1)-O(2) bond length is 1.95 Å. The Se(1)-O(3) bond length is 2.10 Å. The Se(1)-O(4) bond length is 2.01 Å. The Se(1)-O(5) bond length is 1.94 Å. There is one shorter (1.86 Å) and one longer (1.93 Å) Se(1)-O(1) bond length. 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 Se(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one K(1), one Ga(1), and two equivalent Se(1) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to one Ga(1) and two equivalent Se(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Ga(1) and two equivalent Se(1) atoms. In the fifth O site, O(5) is bonded in a distorted square co-planar geometry to two equivalent K(1) and two equivalent Se(1) atoms.