CsNa3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded in a body-centered cubic geometry to six equivalent Na(2) and eight equivalent Na(1) atoms. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to four equivalent Cs(1) and four equivalent Na(2) atoms to form a mixture of edge, face, and corner-sharing NaCs4Na4 tetrahedra. In the second Na site, Na(2) is bonded in a 14-coordinate geometry to six equivalent Cs(1) and eight equivalent Na(1) atoms.
CsNa3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded in a body-centered cubic geometry to six equivalent Na(2) and eight equivalent Na(1) atoms. All Cs(1)-Na(2) bond lengths are 4.73 Å. All Cs(1)-Na(1) bond lengths are 4.10 Å. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to four equivalent Cs(1) and four equivalent Na(2) atoms to form a mixture of edge, face, and corner-sharing NaCs4Na4 tetrahedra. All Na(1)-Na(2) bond lengths are 4.10 Å. In the second Na site, Na(2) is bonded in a 14-coordinate geometry to six equivalent Cs(1) and eight equivalent Na(1) atoms.