Zr2O(PO4)2 crystallizes in the orthorhombic Cmce space group. Zr(1) is bonded to one O(1), one O(2), one O(3), and four equivalent O(4) atoms to form ZrO7 pentagonal bipyramids that share  a cornercorner with one Zr(1)O7 pentagonal bipyramid, corners with four equivalent P(1)O4 tetrahedra, edges with two equivalent Zr(1)O7 pentagonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. P(1) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with four equivalent Zr(1)O7 pentagonal bipyramids and  an edgeedge with one Zr(1)O7 pentagonal bipyramid. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Zr(1) and one P(1) atom. In the second O site, O(2) is bonded in a linear geometry to two equivalent Zr(1) atoms. In the third O site, O(3) is bonded in a linear geometry to one Zr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Zr(1) and one P(1) atom.
Zr2O(PO4)2 crystallizes in the orthorhombic Cmce space group. Zr(1) is bonded to one O(1), one O(2), one O(3), and four equivalent O(4) atoms to form ZrO7 pentagonal bipyramids that share  a cornercorner with one Zr(1)O7 pentagonal bipyramid, corners with four equivalent P(1)O4 tetrahedra, edges with two equivalent Zr(1)O7 pentagonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. The Zr(1)-O(1) bond length is 2.13 Å. The Zr(1)-O(2) bond length is 1.94 Å. The Zr(1)-O(3) bond length is 2.07 Å. There are two shorter (2.18 Å) and two longer (2.30 Å) Zr(1)-O(4) bond lengths. P(1) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with four equivalent Zr(1)O7 pentagonal bipyramids and  an edgeedge with one Zr(1)O7 pentagonal bipyramid. The P(1)-O(1) bond length is 1.50 Å. The P(1)-O(3) bond length is 1.50 Å. Both P(1)-O(4) bond lengths are 1.56 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Zr(1) and one P(1) atom. In the second O site, O(2) is bonded in a linear geometry to two equivalent Zr(1) atoms. In the third O site, O(3) is bonded in a linear geometry to one Zr(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Zr(1) and one P(1) atom.