K3AuSe2 crystallizes in the trigonal R-3c space group. K(1) is bonded in a 6-coordinate geometry to two equivalent Au(1) and four equivalent Se(1) atoms. Au(1) is bonded in a body-centered cubic geometry to six equivalent K(1) and two equivalent Se(1) atoms. Se(1) is bonded in a 7-coordinate geometry to six equivalent K(1) and one Au(1) atom.
K3AuSe2 crystallizes in the trigonal R-3c space group. K(1) is bonded in a 6-coordinate geometry to two equivalent Au(1) and four equivalent Se(1) atoms. Both K(1)-Au(1) bond lengths are 3.53 Å. There are two shorter (3.32 Å) and two longer (3.35 Å) K(1)-Se(1) bond lengths. Au(1) is bonded in a body-centered cubic geometry to six equivalent K(1) and two equivalent Se(1) atoms. Both Au(1)-Se(1) bond lengths are 2.43 Å. Se(1) is bonded in a 7-coordinate geometry to six equivalent K(1) and one Au(1) atom.