Ca(ClO3)2 crystallizes in the monoclinic P2_1/c space group. Ca(1) is bonded in a 8-coordinate geometry to one O(2), one O(4), one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Cl(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Ca(1) and one Cl(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Cl(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ca(1) and one Cl(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Ca(1) and one Cl(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Ca(1) and one Cl(2) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. In the second Cl site, Cl(2) is bonded in a trigonal non-coplanar geometry to one O(2), one O(5), and one O(6) atom.
Ca(ClO3)2 crystallizes in the monoclinic P2_1/c space group. Ca(1) is bonded in a 8-coordinate geometry to one O(2), one O(4), one O(5), one O(6), two equivalent O(1), and two equivalent O(3) atoms. The Ca(1)-O(2) bond length is 2.41 Å. The Ca(1)-O(4) bond length is 2.45 Å. The Ca(1)-O(5) bond length is 2.37 Å. The Ca(1)-O(6) bond length is 2.40 Å. There is one shorter (2.41 Å) and one longer (2.50 Å) Ca(1)-O(1) bond length. There is one shorter (2.44 Å) and one longer (2.66 Å) Ca(1)-O(3) bond length. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Cl(1) atom. The O(1)-Cl(1) bond length is 1.49 Å. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Ca(1) and one Cl(2) atom. The O(2)-Cl(2) bond length is 1.49 Å. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Cl(1) atom. The O(3)-Cl(1) bond length is 1.51 Å. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ca(1) and one Cl(1) atom. The O(4)-Cl(1) bond length is 1.47 Å. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Ca(1) and one Cl(2) atom. The O(5)-Cl(2) bond length is 1.49 Å. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Ca(1) and one Cl(2) atom. The O(6)-Cl(2) bond length is 1.48 Å. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(3), and one O(4) atom. In the second Cl site, Cl(2) is bonded in a trigonal non-coplanar geometry to one O(2), one O(5), and one O(6) atom.