RbAu3Se2 crystallizes in the trigonal P-3m1 space group. Rb(1) is bonded in a 18-coordinate geometry to twelve equivalent Au(1) and six equivalent Se(1) atoms. Au(1) is bonded in a distorted linear geometry to four equivalent Rb(1) and two equivalent Se(1) atoms. Se(1) is bonded to three equivalent Rb(1) and three equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing SeRb3Au3 pentagonal pyramids.
RbAu3Se2 crystallizes in the trigonal P-3m1 space group. Rb(1) is bonded in a 18-coordinate geometry to twelve equivalent Au(1) and six equivalent Se(1) atoms. All Rb(1)-Au(1) bond lengths are 4.09 Å. All Rb(1)-Se(1) bond lengths are 3.72 Å. Au(1) is bonded in a distorted linear geometry to four equivalent Rb(1) and two equivalent Se(1) atoms. Both Au(1)-Se(1) bond lengths are 2.46 Å. Se(1) is bonded to three equivalent Rb(1) and three equivalent Au(1) atoms to form a mixture of distorted edge and corner-sharing SeRb3Au3 pentagonal pyramids.