RePO5 crystallizes in the monoclinic C2/c space group. Re(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form ReO6 octahedra that share corners with three equivalent Re(1)O6 octahedra and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 14-19°. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Re(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-42°. There are six inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to two equivalent Re(1) atoms. In the second O site, O(1) is bonded in a linear geometry to one Re(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the fourth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Re(1) and one P(1) atom. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one Re(1) and one P(1) atom. In the sixth O site, O(5) is bonded in a linear geometry to two equivalent Re(1) atoms.
RePO5 crystallizes in the monoclinic C2/c space group. Re(1) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form ReO6 octahedra that share corners with three equivalent Re(1)O6 octahedra and corners with three equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 14-19°. The Re(1)-O(1) bond length is 2.06 Å. The Re(1)-O(3) bond length is 2.00 Å. The Re(1)-O(4) bond length is 2.03 Å. The Re(1)-O(5) bond length is 1.85 Å. There is one shorter (1.82 Å) and one longer (1.86 Å) Re(1)-O(6) bond length. P(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share corners with three equivalent Re(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-42°. The P(1)-O(1) bond length is 1.50 Å. The P(1)-O(2) bond length is 1.59 Å. The P(1)-O(3) bond length is 1.52 Å. The P(1)-O(4) bond length is 1.51 Å. There are six inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to two equivalent Re(1) atoms. In the second O site, O(1) is bonded in a linear geometry to one Re(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the fourth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Re(1) and one P(1) atom. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one Re(1) and one P(1) atom. In the sixth O site, O(5) is bonded in a linear geometry to two equivalent Re(1) atoms.