Na2AuSn3 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 10-coordinate geometry to two equivalent Au(1) and eight equivalent Sn(1) atoms. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to twelve equivalent Sn(1) atoms. Au(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent Sn(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to two equivalent Na(2), four equivalent Na(1), one Au(1), and three equivalent Sn(1) atoms.
Na2AuSn3 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 10-coordinate geometry to two equivalent Au(1) and eight equivalent Sn(1) atoms. Both Na(1)-Au(1) bond lengths are 3.12 Å. There are four shorter (3.40 Å) and four longer (3.41 Å) Na(1)-Sn(1) bond lengths. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to twelve equivalent Sn(1) atoms. There are six shorter (3.23 Å) and six longer (3.67 Å) Na(2)-Sn(1) bond lengths. Au(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent Sn(1) atoms. All Au(1)-Sn(1) bond lengths are 2.72 Å. Sn(1) is bonded in a 10-coordinate geometry to two equivalent Na(2), four equivalent Na(1), one Au(1), and three equivalent Sn(1) atoms. There is one shorter (2.97 Å) and two longer (2.98 Å) Sn(1)-Sn(1) bond lengths.