Cs2Na3InO4 is alpha Pu-derived structured and crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 1-coordinate geometry to two equivalent O(1) atoms. In the second Cs site, Cs(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(4), and two equivalent O(3) atoms. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form distorted NaO4 trigonal pyramids that share corners with two equivalent Na(3)O4 tetrahedra, corners with two equivalent In(1)O4 tetrahedra,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one In(1)O4 tetrahedra. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the third Na site, Na(3) is bonded to one O(1), one O(2), and two equivalent O(4) atoms to form distorted NaO4 tetrahedra that share corners with two equivalent In(1)O4 tetrahedra, corners with two equivalent Na(1)O4 trigonal pyramids,  an edgeedge with one Na(3)O4 tetrahedra,  an edgeedge with one In(1)O4 tetrahedra, and  an edgeedge with one Na(1)O4 trigonal pyramid. In(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form InO4 tetrahedra that share corners with two equivalent Na(3)O4 tetrahedra, corners with two equivalent Na(1)O4 trigonal pyramids,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one Na(1)O4 trigonal pyramid. There are four inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Cs(2), one Na(1), one Na(2), and one In(1) atom. In the second O site, O(4) is bonded in a 5-coordinate geometry to one Cs(2), one Na(1), one Na(2), two equivalent Na(3), and one In(1) atom. In the third O site, O(1) is bonded in a 7-coordinate geometry to one Cs(2), two equivalent Cs(1), one Na(1), one Na(2), one Na(3), and one In(1) atom. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Cs(2), one Na(1), one Na(2), one Na(3), and one In(1) atom.
Cs2Na3InO4 is alpha Pu-derived structured and crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 1-coordinate geometry to two equivalent O(1) atoms. There is one shorter (3.00 Å) and one longer (3.50 Å) Cs(1)-O(1) bond length. In the second Cs site, Cs(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(4), and two equivalent O(3) atoms. The Cs(2)-O(1) bond length is 3.29 Å. The Cs(2)-O(2) bond length is 3.25 Å. The Cs(2)-O(4) bond length is 3.17 Å. There is one shorter (3.16 Å) and one longer (3.23 Å) Cs(2)-O(3) bond length. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form distorted NaO4 trigonal pyramids that share corners with two equivalent Na(3)O4 tetrahedra, corners with two equivalent In(1)O4 tetrahedra,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one In(1)O4 tetrahedra. The Na(1)-O(1) bond length is 2.33 Å. The Na(1)-O(2) bond length is 2.30 Å. The Na(1)-O(3) bond length is 2.45 Å. The Na(1)-O(4) bond length is 2.39 Å. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. The Na(2)-O(1) bond length is 2.59 Å. The Na(2)-O(2) bond length is 2.36 Å. The Na(2)-O(3) bond length is 2.35 Å. The Na(2)-O(4) bond length is 2.33 Å. In the third Na site, Na(3) is bonded to one O(1), one O(2), and two equivalent O(4) atoms to form distorted NaO4 tetrahedra that share corners with two equivalent In(1)O4 tetrahedra, corners with two equivalent Na(1)O4 trigonal pyramids,  an edgeedge with one Na(3)O4 tetrahedra,  an edgeedge with one In(1)O4 tetrahedra, and  an edgeedge with one Na(1)O4 trigonal pyramid. The Na(3)-O(1) bond length is 2.32 Å. The Na(3)-O(2) bond length is 2.42 Å. There is one shorter (2.34 Å) and one longer (2.40 Å) Na(3)-O(4) bond length. In(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form InO4 tetrahedra that share corners with two equivalent Na(3)O4 tetrahedra, corners with two equivalent Na(1)O4 trigonal pyramids,  an edgeedge with one Na(3)O4 tetrahedra, and  an edgeedge with one Na(1)O4 trigonal pyramid. The In(1)-O(1) bond length is 2.10 Å. The In(1)-O(2) bond length is 2.11 Å. The In(1)-O(3) bond length is 2.11 Å. The In(1)-O(4) bond length is 2.14 Å. There are four inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Cs(2), one Na(1), one Na(2), and one In(1) atom. In the second O site, O(4) is bonded in a 5-coordinate geometry to one Cs(2), one Na(1), one Na(2), two equivalent Na(3), and one In(1) atom. In the third O site, O(1) is bonded in a 7-coordinate geometry to one Cs(2), two equivalent Cs(1), one Na(1), one Na(2), one Na(3), and one In(1) atom. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Cs(2), one Na(1), one Na(2), one Na(3), and one In(1) atom.