BPO4 crystallizes in the tetragonal I-4 space group. B(1) is bonded to four equivalent O(1) atoms to form BO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. P(1) is bonded to four equivalent O(1) atoms to form PO4 tetrahedra that share corners with four equivalent B(1)O4 tetrahedra. O(1) is bonded in a bent 120 degrees geometry to one B(1) and one P(1) atom.
BPO4 crystallizes in the tetragonal I-4 space group. B(1) is bonded to four equivalent O(1) atoms to form BO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. All B(1)-O(1) bond lengths are 1.46 Å. P(1) is bonded to four equivalent O(1) atoms to form PO4 tetrahedra that share corners with four equivalent B(1)O4 tetrahedra. All P(1)-O(1) bond lengths are 1.53 Å. O(1) is bonded in a bent 120 degrees geometry to one B(1) and one P(1) atom.