Na2LuCPO7 crystallizes in the monoclinic P2_1/m space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Lu(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form distorted LuO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. P(1) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with four equivalent Lu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one C(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Na(1), one Lu(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal pyramidal geometry to two equivalent Na(1), one Lu(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Lu(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Lu(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Lu(1), and one P(1) atom.
Na2LuCPO7 crystallizes in the monoclinic P2_1/m space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Na(1)-O(1) bond length is 2.22 Å. The Na(1)-O(2) bond length is 2.39 Å. The Na(1)-O(3) bond length is 2.42 Å. The Na(1)-O(4) bond length is 2.60 Å. The Na(1)-O(5) bond length is 2.54 Å. The Na(1)-O(6) bond length is 2.73 Å. Lu(1) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form distorted LuO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra. The Lu(1)-O(2) bond length is 2.28 Å. The Lu(1)-O(3) bond length is 2.22 Å. The Lu(1)-O(5) bond length is 2.22 Å. The Lu(1)-O(6) bond length is 2.20 Å. Both Lu(1)-O(4) bond lengths are 2.19 Å. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.31 Å. The C(1)-O(3) bond length is 1.33 Å. P(1) is bonded to one O(5), one O(6), and two equivalent O(4) atoms to form PO4 tetrahedra that share corners with four equivalent Lu(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-60°. The P(1)-O(5) bond length is 1.58 Å. The P(1)-O(6) bond length is 1.56 Å. Both P(1)-O(4) bond lengths are 1.54 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one C(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Na(1), one Lu(1), and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal pyramidal geometry to two equivalent Na(1), one Lu(1), and one C(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Lu(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Lu(1), and one P(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Lu(1), and one P(1) atom.