Na3Ag is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to four equivalent Na(2) and four equivalent Ag(1) atoms. In the second Na site, Na(2) is bonded to eight equivalent Na(1) and four equivalent Ag(1) atoms to form NaNa8Ag4 cuboctahedra that share corners with four equivalent Na(2)Na8Ag4 cuboctahedra, corners with eight equivalent Ag(1)Na12 cuboctahedra, edges with eight equivalent Na(2)Na8Ag4 cuboctahedra, faces with four equivalent Na(2)Na8Ag4 cuboctahedra, and faces with six equivalent Ag(1)Na12 cuboctahedra. Ag(1) is bonded to four equivalent Na(2) and eight equivalent Na(1) atoms to form AgNa12 cuboctahedra that share corners with four equivalent Ag(1)Na12 cuboctahedra, corners with eight equivalent Na(2)Na8Ag4 cuboctahedra, edges with eight equivalent Ag(1)Na12 cuboctahedra, faces with four equivalent Ag(1)Na12 cuboctahedra, and faces with six equivalent Na(2)Na8Ag4 cuboctahedra.
Na3Ag is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to four equivalent Na(2) and four equivalent Ag(1) atoms. All Na(1)-Na(2) bond lengths are 3.28 Å. All Na(1)-Ag(1) bond lengths are 3.28 Å. In the second Na site, Na(2) is bonded to eight equivalent Na(1) and four equivalent Ag(1) atoms to form NaNa8Ag4 cuboctahedra that share corners with four equivalent Na(2)Na8Ag4 cuboctahedra, corners with eight equivalent Ag(1)Na12 cuboctahedra, edges with eight equivalent Na(2)Na8Ag4 cuboctahedra, faces with four equivalent Na(2)Na8Ag4 cuboctahedra, and faces with six equivalent Ag(1)Na12 cuboctahedra. All Na(2)-Ag(1) bond lengths are 3.51 Å. Ag(1) is bonded to four equivalent Na(2) and eight equivalent Na(1) atoms to form AgNa12 cuboctahedra that share corners with four equivalent Ag(1)Na12 cuboctahedra, corners with eight equivalent Na(2)Na8Ag4 cuboctahedra, edges with eight equivalent Ag(1)Na12 cuboctahedra, faces with four equivalent Ag(1)Na12 cuboctahedra, and faces with six equivalent Na(2)Na8Ag4 cuboctahedra.