LiCu2PO4 crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(13), one O(4), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Cu(2)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. In the second Li site, Li(2) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Cu(7)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. In the third Li site, Li(3) is bonded to one O(4), one O(6), one O(7), and one O(9) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Cu(8)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. In the fourth Li site, Li(4) is bonded to one O(12), one O(3), one O(5), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Cu(6)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are eight inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(14), one O(2), one O(3), and one O(7) atom. In the second Cu site, Cu(2) is bonded to one O(1), one O(10), one O(6), and one O(8) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. In the third Cu site, Cu(3) is bonded in a distorted rectangular see-saw-like geometry to one O(12), one O(16), one O(6), and one O(9) atom. In the fourth Cu site, Cu(4) is bonded in a 4-coordinate geometry to one O(10), one O(11), one O(15), and one O(5) atom. In the fifth Cu site, Cu(5) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(10), one O(13), and one O(16) atom. In the sixth Cu site, Cu(6) is bonded to one O(12), one O(14), one O(15), and one O(3) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. In the seventh Cu site, Cu(7) is bonded to one O(11), one O(13), one O(15), and one O(2) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. In the eighth Cu site, Cu(8) is bonded to one O(14), one O(16), one O(4), and one O(9) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(16), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent Cu(8)O4 tetrahedra. In the second P site, P(2) is bonded to one O(1), one O(15), one O(2), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, and corners with two equivalent Cu(7)O4 tetrahedra. In the third P site, P(3) is bonded to one O(11), one O(12), one O(14), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra, and corners with two equivalent Cu(6)O4 tetrahedra. In the fourth P site, P(4) is bonded to one O(10), one O(13), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, and corners with two equivalent Cu(2)O4 tetrahedra. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Cu(2), one Cu(5), and one P(2) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra, corners with two equivalent O(8)Li2CuP tetrahedra, corners with two equivalent O(13)LiCu2P tetrahedra, and  a cornercorner with one O(5)Li2CuP trigonal pyramid. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Cu(1), one Cu(7), and one P(2) atom. In the third O site, O(3) is bonded to one Li(4), one Cu(1), one Cu(6), and one P(1) atom to form distorted corner-sharing OLiCu2P tetrahedra. In the fourth O site, O(4) is bonded to one Li(1), one Li(3), one Cu(8), and one P(1) atom to form distorted OLi2CuP tetrahedra that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(1)LiCu2P tetrahedra,  a cornercorner with one O(13)LiCu2P tetrahedra,  a cornercorner with one O(3)LiCu2P tetrahedra, and corners with two equivalent O(9)LiCu2P tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), one Li(4), one Cu(4), and one P(2) atom to form distorted OLi2CuP trigonal pyramids that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(1)LiCu2P tetrahedra,  a cornercorner with one O(3)LiCu2P tetrahedra, and corners with two equivalent O(11)LiCu2P tetrahedra. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(3), one Cu(2), one Cu(3), and one P(1) atom. In the seventh O site, O(7) is bonded to one Li(3), one Li(4), one Cu(1), and one P(3) atom to form distorted OLi2CuP tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra,  a cornercorner with one O(11)LiCu2P tetrahedra,  a cornercorner with one O(9)LiCu2P tetrahedra, corners with two equivalent O(3)LiCu2P tetrahedra, and  a cornercorner with one O(5)Li2CuP trigonal pyramid. In the eighth O site, O(8) is bonded to one Li(1), one Li(2), one Cu(2), and one P(4) atom to form OLi2CuP tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra,  a cornercorner with one O(11)LiCu2P tetrahedra,  a cornercorner with one O(9)LiCu2P tetrahedra, corners with two equivalent O(1)LiCu2P tetrahedra, corners with two equivalent O(13)LiCu2P tetrahedra, and  a cornercorner with one O(5)Li2CuP trigonal pyramid. In the ninth O site, O(9) is bonded to one Li(3), one Cu(3), one Cu(8), and one P(4) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(13)LiCu2P tetrahedra, and corners with two equivalent O(4)Li2CuP tetrahedra. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Cu(2), one Cu(4), one Cu(5), and one P(4) atom. In the eleventh O site, O(11) is bonded to one Li(2), one Cu(4), one Cu(7), and one P(3) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(13)LiCu2P tetrahedra, and corners with two equivalent O(5)Li2CuP trigonal pyramids. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(4), one Cu(3), one Cu(6), and one P(3) atom. In the thirteenth O site, O(13) is bonded to one Li(1), one Cu(5), one Cu(7), and one P(4) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra,  a cornercorner with one O(11)LiCu2P tetrahedra,  a cornercorner with one O(9)LiCu2P tetrahedra, corners with two equivalent O(8)Li2CuP tetrahedra, and corners with two equivalent O(1)LiCu2P tetrahedra. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Cu(1), one Cu(6), one Cu(8), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a distorted rectangular see-saw-like geometry to one Cu(4), one Cu(6), one Cu(7), and one P(2) atom. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Cu(3), one Cu(5), one Cu(8), and one P(1) atom.
LiCu2PO4 crystallizes in the triclinic P1 space group. There are four inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(13), one O(4), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Cu(2)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. The Li(1)-O(1) bond length is 1.98 Å. The Li(1)-O(13) bond length is 2.02 Å. The Li(1)-O(4) bond length is 2.03 Å. The Li(1)-O(8) bond length is 2.12 Å. In the second Li site, Li(2) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Cu(7)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The Li(2)-O(11) bond length is 1.96 Å. The Li(2)-O(2) bond length is 1.98 Å. The Li(2)-O(5) bond length is 2.10 Å. The Li(2)-O(8) bond length is 2.03 Å. In the third Li site, Li(3) is bonded to one O(4), one O(6), one O(7), and one O(9) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Cu(8)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. The Li(3)-O(4) bond length is 2.03 Å. The Li(3)-O(6) bond length is 2.04 Å. The Li(3)-O(7) bond length is 2.06 Å. The Li(3)-O(9) bond length is 1.97 Å. In the fourth Li site, Li(4) is bonded to one O(12), one O(3), one O(5), and one O(7) atom to form LiO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Cu(6)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The Li(4)-O(12) bond length is 1.99 Å. The Li(4)-O(3) bond length is 1.99 Å. The Li(4)-O(5) bond length is 2.04 Å. The Li(4)-O(7) bond length is 2.09 Å. There are eight inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(14), one O(2), one O(3), and one O(7) atom. The Cu(1)-O(14) bond length is 1.95 Å. The Cu(1)-O(2) bond length is 2.40 Å. The Cu(1)-O(3) bond length is 2.42 Å. The Cu(1)-O(7) bond length is 1.95 Å. In the second Cu site, Cu(2) is bonded to one O(1), one O(10), one O(6), and one O(8) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, and corners with two equivalent P(4)O4 tetrahedra. The Cu(2)-O(1) bond length is 2.17 Å. The Cu(2)-O(10) bond length is 2.08 Å. The Cu(2)-O(6) bond length is 2.27 Å. The Cu(2)-O(8) bond length is 2.03 Å. In the third Cu site, Cu(3) is bonded in a distorted rectangular see-saw-like geometry to one O(12), one O(16), one O(6), and one O(9) atom. The Cu(3)-O(12) bond length is 2.51 Å. The Cu(3)-O(16) bond length is 1.94 Å. The Cu(3)-O(6) bond length is 1.94 Å. The Cu(3)-O(9) bond length is 2.53 Å. In the fourth Cu site, Cu(4) is bonded in a 4-coordinate geometry to one O(10), one O(11), one O(15), and one O(5) atom. The Cu(4)-O(10) bond length is 2.35 Å. The Cu(4)-O(11) bond length is 2.52 Å. The Cu(4)-O(15) bond length is 1.96 Å. The Cu(4)-O(5) bond length is 1.95 Å. In the fifth Cu site, Cu(5) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(10), one O(13), and one O(16) atom. The Cu(5)-O(1) bond length is 2.40 Å. The Cu(5)-O(10) bond length is 1.97 Å. The Cu(5)-O(13) bond length is 1.95 Å. The Cu(5)-O(16) bond length is 2.35 Å. In the sixth Cu site, Cu(6) is bonded to one O(12), one O(14), one O(15), and one O(3) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The Cu(6)-O(12) bond length is 2.23 Å. The Cu(6)-O(14) bond length is 2.09 Å. The Cu(6)-O(15) bond length is 2.23 Å. The Cu(6)-O(3) bond length is 2.10 Å. In the seventh Cu site, Cu(7) is bonded to one O(11), one O(13), one O(15), and one O(2) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The Cu(7)-O(11) bond length is 2.05 Å. The Cu(7)-O(13) bond length is 2.27 Å. The Cu(7)-O(15) bond length is 2.14 Å. The Cu(7)-O(2) bond length is 2.23 Å. In the eighth Cu site, Cu(8) is bonded to one O(14), one O(16), one O(4), and one O(9) atom to form distorted CuO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. The Cu(8)-O(14) bond length is 2.11 Å. The Cu(8)-O(16) bond length is 2.12 Å. The Cu(8)-O(4) bond length is 2.26 Å. The Cu(8)-O(9) bond length is 2.11 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(16), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra, corners with two equivalent Li(3)O4 tetrahedra, and corners with two equivalent Cu(8)O4 tetrahedra. The P(1)-O(16) bond length is 1.57 Å. The P(1)-O(3) bond length is 1.55 Å. The P(1)-O(4) bond length is 1.55 Å. The P(1)-O(6) bond length is 1.57 Å. In the second P site, P(2) is bonded to one O(1), one O(15), one O(2), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Li(1)O4 tetrahedra,  a cornercorner with one Li(4)O4 tetrahedra,  a cornercorner with one Cu(2)O4 tetrahedra,  a cornercorner with one Cu(6)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, and corners with two equivalent Cu(7)O4 tetrahedra. The P(2)-O(1) bond length is 1.55 Å. The P(2)-O(15) bond length is 1.57 Å. The P(2)-O(2) bond length is 1.55 Å. The P(2)-O(5) bond length is 1.58 Å. In the third P site, P(3) is bonded to one O(11), one O(12), one O(14), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra, corners with two equivalent Li(4)O4 tetrahedra, and corners with two equivalent Cu(6)O4 tetrahedra. The P(3)-O(11) bond length is 1.55 Å. The P(3)-O(12) bond length is 1.54 Å. The P(3)-O(14) bond length is 1.57 Å. The P(3)-O(7) bond length is 1.58 Å. In the fourth P site, P(4) is bonded to one O(10), one O(13), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Li(2)O4 tetrahedra,  a cornercorner with one Li(3)O4 tetrahedra,  a cornercorner with one Cu(7)O4 tetrahedra,  a cornercorner with one Cu(8)O4 tetrahedra, corners with two equivalent Li(1)O4 tetrahedra, and corners with two equivalent Cu(2)O4 tetrahedra. The P(4)-O(10) bond length is 1.55 Å. The P(4)-O(13) bond length is 1.58 Å. The P(4)-O(8) bond length is 1.57 Å. The P(4)-O(9) bond length is 1.55 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Li(1), one Cu(2), one Cu(5), and one P(2) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra, corners with two equivalent O(8)Li2CuP tetrahedra, corners with two equivalent O(13)LiCu2P tetrahedra, and  a cornercorner with one O(5)Li2CuP trigonal pyramid. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Li(2), one Cu(1), one Cu(7), and one P(2) atom. In the third O site, O(3) is bonded to one Li(4), one Cu(1), one Cu(6), and one P(1) atom to form distorted corner-sharing OLiCu2P tetrahedra. In the fourth O site, O(4) is bonded to one Li(1), one Li(3), one Cu(8), and one P(1) atom to form distorted OLi2CuP tetrahedra that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(1)LiCu2P tetrahedra,  a cornercorner with one O(13)LiCu2P tetrahedra,  a cornercorner with one O(3)LiCu2P tetrahedra, and corners with two equivalent O(9)LiCu2P tetrahedra. In the fifth O site, O(5) is bonded to one Li(2), one Li(4), one Cu(4), and one P(2) atom to form distorted OLi2CuP trigonal pyramids that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(1)LiCu2P tetrahedra,  a cornercorner with one O(3)LiCu2P tetrahedra, and corners with two equivalent O(11)LiCu2P tetrahedra. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(3), one Cu(2), one Cu(3), and one P(1) atom. In the seventh O site, O(7) is bonded to one Li(3), one Li(4), one Cu(1), and one P(3) atom to form distorted OLi2CuP tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra,  a cornercorner with one O(11)LiCu2P tetrahedra,  a cornercorner with one O(9)LiCu2P tetrahedra, corners with two equivalent O(3)LiCu2P tetrahedra, and  a cornercorner with one O(5)Li2CuP trigonal pyramid. In the eighth O site, O(8) is bonded to one Li(1), one Li(2), one Cu(2), and one P(4) atom to form OLi2CuP tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra,  a cornercorner with one O(11)LiCu2P tetrahedra,  a cornercorner with one O(9)LiCu2P tetrahedra, corners with two equivalent O(1)LiCu2P tetrahedra, corners with two equivalent O(13)LiCu2P tetrahedra, and  a cornercorner with one O(5)Li2CuP trigonal pyramid. In the ninth O site, O(9) is bonded to one Li(3), one Cu(3), one Cu(8), and one P(4) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(13)LiCu2P tetrahedra, and corners with two equivalent O(4)Li2CuP tetrahedra. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Cu(2), one Cu(4), one Cu(5), and one P(4) atom. In the eleventh O site, O(11) is bonded to one Li(2), one Cu(4), one Cu(7), and one P(3) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(7)Li2CuP tetrahedra,  a cornercorner with one O(8)Li2CuP tetrahedra,  a cornercorner with one O(13)LiCu2P tetrahedra, and corners with two equivalent O(5)Li2CuP trigonal pyramids. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Li(4), one Cu(3), one Cu(6), and one P(3) atom. In the thirteenth O site, O(13) is bonded to one Li(1), one Cu(5), one Cu(7), and one P(4) atom to form distorted OLiCu2P tetrahedra that share  a cornercorner with one O(4)Li2CuP tetrahedra,  a cornercorner with one O(11)LiCu2P tetrahedra,  a cornercorner with one O(9)LiCu2P tetrahedra, corners with two equivalent O(8)Li2CuP tetrahedra, and corners with two equivalent O(1)LiCu2P tetrahedra. In the fourteenth O site, O(14) is bonded in a rectangular see-saw-like geometry to one Cu(1), one Cu(6), one Cu(8), and one P(3) atom. In the fifteenth O site, O(15) is bonded in a distorted rectangular see-saw-like geometry to one Cu(4), one Cu(6), one Cu(7), and one P(2) atom. In the sixteenth O site, O(16) is bonded in a distorted rectangular see-saw-like geometry to one Cu(3), one Cu(5), one Cu(8), and one P(1) atom.