K3AuSn4 crystallizes in the orthorhombic Pmmn space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent Au(1) and four equivalent Sn(2) atoms. In the second K site, K(2) is bonded in a 9-coordinate geometry to one Au(1), four equivalent Sn(1), and four equivalent Sn(2) atoms. Au(1) is bonded in a 8-coordinate geometry to two equivalent K(1), two equivalent K(2), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 1-coordinate geometry to four equivalent K(2) and one Au(1) atom. In the second Sn site, Sn(2) is bonded in a 1-coordinate geometry to two equivalent K(1), four equivalent K(2), and one Au(1) atom.
K3AuSn4 crystallizes in the orthorhombic Pmmn space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent Au(1) and four equivalent Sn(2) atoms. Both K(1)-Au(1) bond lengths are 3.62 Å. There are two shorter (3.71 Å) and two longer (3.96 Å) K(1)-Sn(2) bond lengths. In the second K site, K(2) is bonded in a 9-coordinate geometry to one Au(1), four equivalent Sn(1), and four equivalent Sn(2) atoms. The K(2)-Au(1) bond length is 3.35 Å. There are a spread of K(2)-Sn(1) bond distances ranging from 3.68-3.98 Å. There are two shorter (3.74 Å) and two longer (3.82 Å) K(2)-Sn(2) bond lengths. Au(1) is bonded in a 8-coordinate geometry to two equivalent K(1), two equivalent K(2), two equivalent Sn(1), and two equivalent Sn(2) atoms. Both Au(1)-Sn(1) bond lengths are 2.80 Å. Both Au(1)-Sn(2) bond lengths are 2.81 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 1-coordinate geometry to four equivalent K(2) and one Au(1) atom. In the second Sn site, Sn(2) is bonded in a 1-coordinate geometry to two equivalent K(1), four equivalent K(2), and one Au(1) atom.