Ca(SO5)2 crystallizes in the hexagonal P6_2 space group. Ca(1) is bonded in a distorted hexagonal bipyramidal geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. S(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ca(1) and one O(2) atom. In the second O site, O(1) is bonded in a single-bond geometry to one S(1) atom. In the third O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Ca(1) and one O(5) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one Ca(1) and one S(1) atom. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one Ca(1) and one S(1) atom.
Ca(SO5)2 crystallizes in the hexagonal P6_2 space group. Ca(1) is bonded in a distorted hexagonal bipyramidal geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. Both Ca(1)-O(2) bond lengths are 2.96 Å. Both Ca(1)-O(3) bond lengths are 2.34 Å. Both Ca(1)-O(4) bond lengths are 2.31 Å. Both Ca(1)-O(5) bond lengths are 2.96 Å. S(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. The S(1)-O(1) bond length is 1.44 Å. The S(1)-O(3) bond length is 1.49 Å. The S(1)-O(4) bond length is 1.48 Å. There are five inequivalent O sites. In the first O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ca(1) and one O(2) atom. The O(5)-O(2) bond length is 1.22 Å. In the second O site, O(1) is bonded in a single-bond geometry to one S(1) atom. In the third O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Ca(1) and one O(5) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one Ca(1) and one S(1) atom. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one Ca(1) and one S(1) atom.