CsNa3PbO4 crystallizes in the triclinic P-1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a distorted body-centered cubic geometry to one O(3), one O(4), one O(5), one O(7), two equivalent O(2), and two equivalent O(6) atoms. In the second Cs site, Cs(2) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), one O(7), one O(8), and two equivalent O(1) atoms. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(7), and two equivalent O(8) atoms to form NaO4 tetrahedra that share  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra,  a cornercorner with one Na(5)O4 tetrahedra,  a cornercorner with one Na(6)O4 tetrahedra,  a cornercorner with one Pb(2)O4 tetrahedra, corners with three equivalent Pb(1)O4 tetrahedra,  an edgeedge with one Na(1)O4 tetrahedra, and  an edgeedge with one Na(6)O4 tetrahedra. In the second Na site, Na(2) is bonded to one O(6), one O(7), and two equivalent O(5) atoms to form NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(5)O4 tetrahedra,  a cornercorner with one Na(6)O4 tetrahedra,  a cornercorner with one Pb(1)O4 tetrahedra, corners with three equivalent Pb(2)O4 tetrahedra,  an edgeedge with one Na(2)O4 tetrahedra, and  an edgeedge with one Na(5)O4 tetrahedra. In the third Na site, Na(3) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra,  a cornercorner with one Na(6)O4 tetrahedra,  a cornercorner with one Pb(1)O4 tetrahedra,  a cornercorner with one Pb(2)O4 tetrahedra, corners with three equivalent Na(5)O4 tetrahedra,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one Pb(2)O4 tetrahedra. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(5)O4 tetrahedra,  a cornercorner with one Pb(1)O4 tetrahedra,  a cornercorner with one Pb(2)O4 tetrahedra, corners with three equivalent Na(6)O4 tetrahedra,  an edgeedge with one Na(4)O4 tetrahedra, and  an edgeedge with one Pb(1)O4 tetrahedra. In the fifth Na site, Na(5) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra, corners with two equivalent Pb(2)O4 tetrahedra, corners with three equivalent Na(3)O4 tetrahedra,  an edgeedge with one Na(2)O4 tetrahedra, and  an edgeedge with one Pb(1)O4 tetrahedra. In the sixth Na site, Na(6) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra, corners with two equivalent Pb(1)O4 tetrahedra, corners with three equivalent Na(4)O4 tetrahedra,  an edgeedge with one Na(1)O4 tetrahedra, and  an edgeedge with one Pb(2)O4 tetrahedra. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one O(1), one O(4), one O(6), and one O(8) atom to form PbO4 tetrahedra that share  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra, corners with two equivalent Na(6)O4 tetrahedra, corners with three equivalent Na(1)O4 tetrahedra,  an edgeedge with one Na(4)O4 tetrahedra, and  an edgeedge with one Na(5)O4 tetrahedra. In the second Pb site, Pb(2) is bonded to one O(2), one O(3), one O(5), and one O(7) atom to form PbO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra, corners with two equivalent Na(5)O4 tetrahedra, corners with three equivalent Na(2)O4 tetrahedra,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one Na(6)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a 6-coordinate geometry to one Cs(1), one Cs(2), one Na(1), one Na(2), one Na(6), and one Pb(2) atom. In the second O site, O(8) is bonded in a 4-coordinate geometry to one Cs(2), one Na(6), two equivalent Na(1), and one Pb(1) atom. In the third O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Cs(2), one Na(1), one Na(4), one Na(5), and one Pb(1) atom. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Cs(1), one Na(5), two equivalent Na(3), and one Pb(2) atom. In the fifth O site, O(3) is bonded in a 6-coordinate geometry to one Cs(1), one Cs(2), one Na(3), one Na(4), one Na(6), and one Pb(2) atom. In the sixth O site, O(4) is bonded in a 4-coordinate geometry to one Cs(1), one Cs(2), one Na(6), two equivalent Na(4), and one Pb(1) atom. In the seventh O site, O(5) is bonded in a 6-coordinate geometry to one Cs(1), one Cs(2), one Na(5), two equivalent Na(2), and one Pb(2) atom. In the eighth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Cs(1), one Na(2), one Na(3), one Na(5), and one Pb(1) atom.
CsNa3PbO4 crystallizes in the triclinic P-1 space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a distorted body-centered cubic geometry to one O(3), one O(4), one O(5), one O(7), two equivalent O(2), and two equivalent O(6) atoms. The Cs(1)-O(3) bond length is 3.15 Å. The Cs(1)-O(4) bond length is 3.45 Å. The Cs(1)-O(5) bond length is 3.25 Å. The Cs(1)-O(7) bond length is 3.35 Å. There is one shorter (3.19 Å) and one longer (3.47 Å) Cs(1)-O(2) bond length. There is one shorter (3.25 Å) and one longer (3.43 Å) Cs(1)-O(6) bond length. In the second Cs site, Cs(2) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(5), one O(7), one O(8), and two equivalent O(1) atoms. The Cs(2)-O(3) bond length is 3.24 Å. The Cs(2)-O(4) bond length is 3.36 Å. The Cs(2)-O(5) bond length is 3.33 Å. The Cs(2)-O(7) bond length is 3.25 Å. The Cs(2)-O(8) bond length is 3.29 Å. There is one shorter (3.14 Å) and one longer (3.42 Å) Cs(2)-O(1) bond length. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(7), and two equivalent O(8) atoms to form NaO4 tetrahedra that share  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra,  a cornercorner with one Na(5)O4 tetrahedra,  a cornercorner with one Na(6)O4 tetrahedra,  a cornercorner with one Pb(2)O4 tetrahedra, corners with three equivalent Pb(1)O4 tetrahedra,  an edgeedge with one Na(1)O4 tetrahedra, and  an edgeedge with one Na(6)O4 tetrahedra. The Na(1)-O(1) bond length is 2.29 Å. The Na(1)-O(7) bond length is 2.34 Å. There is one shorter (2.35 Å) and one longer (2.42 Å) Na(1)-O(8) bond length. In the second Na site, Na(2) is bonded to one O(6), one O(7), and two equivalent O(5) atoms to form NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(5)O4 tetrahedra,  a cornercorner with one Na(6)O4 tetrahedra,  a cornercorner with one Pb(1)O4 tetrahedra, corners with three equivalent Pb(2)O4 tetrahedra,  an edgeedge with one Na(2)O4 tetrahedra, and  an edgeedge with one Na(5)O4 tetrahedra. The Na(2)-O(6) bond length is 2.35 Å. The Na(2)-O(7) bond length is 2.33 Å. There is one shorter (2.34 Å) and one longer (2.48 Å) Na(2)-O(5) bond length. In the third Na site, Na(3) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra,  a cornercorner with one Na(6)O4 tetrahedra,  a cornercorner with one Pb(1)O4 tetrahedra,  a cornercorner with one Pb(2)O4 tetrahedra, corners with three equivalent Na(5)O4 tetrahedra,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one Pb(2)O4 tetrahedra. The Na(3)-O(3) bond length is 2.38 Å. The Na(3)-O(6) bond length is 2.31 Å. There is one shorter (2.32 Å) and one longer (2.50 Å) Na(3)-O(2) bond length. In the fourth Na site, Na(4) is bonded to one O(1), one O(3), and two equivalent O(4) atoms to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(5)O4 tetrahedra,  a cornercorner with one Pb(1)O4 tetrahedra,  a cornercorner with one Pb(2)O4 tetrahedra, corners with three equivalent Na(6)O4 tetrahedra,  an edgeedge with one Na(4)O4 tetrahedra, and  an edgeedge with one Pb(1)O4 tetrahedra. The Na(4)-O(1) bond length is 2.39 Å. The Na(4)-O(3) bond length is 2.28 Å. There is one shorter (2.35 Å) and one longer (2.51 Å) Na(4)-O(4) bond length. In the fifth Na site, Na(5) is bonded to one O(1), one O(2), one O(5), and one O(6) atom to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra, corners with two equivalent Pb(2)O4 tetrahedra, corners with three equivalent Na(3)O4 tetrahedra,  an edgeedge with one Na(2)O4 tetrahedra, and  an edgeedge with one Pb(1)O4 tetrahedra. The Na(5)-O(1) bond length is 2.39 Å. The Na(5)-O(2) bond length is 2.31 Å. The Na(5)-O(5) bond length is 2.33 Å. The Na(5)-O(6) bond length is 2.47 Å. In the sixth Na site, Na(6) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form distorted NaO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra, corners with two equivalent Pb(1)O4 tetrahedra, corners with three equivalent Na(4)O4 tetrahedra,  an edgeedge with one Na(1)O4 tetrahedra, and  an edgeedge with one Pb(2)O4 tetrahedra. The Na(6)-O(3) bond length is 2.37 Å. The Na(6)-O(4) bond length is 2.31 Å. The Na(6)-O(7) bond length is 2.55 Å. The Na(6)-O(8) bond length is 2.34 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one O(1), one O(4), one O(6), and one O(8) atom to form PbO4 tetrahedra that share  a cornercorner with one Na(2)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra, corners with two equivalent Na(6)O4 tetrahedra, corners with three equivalent Na(1)O4 tetrahedra,  an edgeedge with one Na(4)O4 tetrahedra, and  an edgeedge with one Na(5)O4 tetrahedra. The Pb(1)-O(1) bond length is 2.13 Å. The Pb(1)-O(4) bond length is 2.11 Å. The Pb(1)-O(6) bond length is 2.11 Å. The Pb(1)-O(8) bond length is 2.10 Å. In the second Pb site, Pb(2) is bonded to one O(2), one O(3), one O(5), and one O(7) atom to form PbO4 tetrahedra that share  a cornercorner with one Na(1)O4 tetrahedra,  a cornercorner with one Na(3)O4 tetrahedra,  a cornercorner with one Na(4)O4 tetrahedra, corners with two equivalent Na(5)O4 tetrahedra, corners with three equivalent Na(2)O4 tetrahedra,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one Na(6)O4 tetrahedra. The Pb(2)-O(2) bond length is 2.11 Å. The Pb(2)-O(3) bond length is 2.14 Å. The Pb(2)-O(5) bond length is 2.10 Å. The Pb(2)-O(7) bond length is 2.10 Å. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a 6-coordinate geometry to one Cs(1), one Cs(2), one Na(1), one Na(2), one Na(6), and one Pb(2) atom. In the second O site, O(8) is bonded in a 4-coordinate geometry to one Cs(2), one Na(6), two equivalent Na(1), and one Pb(1) atom. In the third O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Cs(2), one Na(1), one Na(4), one Na(5), and one Pb(1) atom. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Cs(1), one Na(5), two equivalent Na(3), and one Pb(2) atom. In the fifth O site, O(3) is bonded in a 6-coordinate geometry to one Cs(1), one Cs(2), one Na(3), one Na(4), one Na(6), and one Pb(2) atom. In the sixth O site, O(4) is bonded in a 4-coordinate geometry to one Cs(1), one Cs(2), one Na(6), two equivalent Na(4), and one Pb(1) atom. In the seventh O site, O(5) is bonded in a 6-coordinate geometry to one Cs(1), one Cs(2), one Na(5), two equivalent Na(2), and one Pb(2) atom. In the eighth O site, O(6) is bonded in a 4-coordinate geometry to two equivalent Cs(1), one Na(2), one Na(3), one Na(5), and one Pb(1) atom.