Y3MnAu5 crystallizes in the trigonal R-3 space group. Y(1) is bonded in a 9-coordinate geometry to one Au(1), one Au(2), two equivalent Au(3), and five equivalent Au(4) atoms. Mn(1) is bonded in a 8-coordinate geometry to one Au(2), one Au(3), and six equivalent Au(4) atoms. There are four inequivalent Au sites. In the first Au site, Au(1) is bonded in an octahedral geometry to six equivalent Y(1) atoms. In the second Au site, Au(2) is bonded in a distorted body-centered cubic geometry to six equivalent Y(1) and two equivalent Mn(1) atoms. In the third Au site, Au(3) is bonded in a 7-coordinate geometry to six equivalent Y(1) and one Mn(1) atom. In the fourth Au site, Au(4) is bonded in a 7-coordinate geometry to five equivalent Y(1) and two equivalent Mn(1) atoms.
Y3MnAu5 crystallizes in the trigonal R-3 space group. Y(1) is bonded in a 9-coordinate geometry to one Au(1), one Au(2), two equivalent Au(3), and five equivalent Au(4) atoms. The Y(1)-Au(1) bond length is 3.05 Å. The Y(1)-Au(2) bond length is 3.27 Å. There is one shorter (3.05 Å) and one longer (3.22 Å) Y(1)-Au(3) bond length. There are a spread of Y(1)-Au(4) bond distances ranging from 2.92-3.15 Å. Mn(1) is bonded in a 8-coordinate geometry to one Au(2), one Au(3), and six equivalent Au(4) atoms. The Mn(1)-Au(2) bond length is 2.83 Å. The Mn(1)-Au(3) bond length is 2.70 Å. There are three shorter (2.86 Å) and three longer (2.98 Å) Mn(1)-Au(4) bond lengths. There are four inequivalent Au sites. In the first Au site, Au(1) is bonded in an octahedral geometry to six equivalent Y(1) atoms. In the second Au site, Au(2) is bonded in a distorted body-centered cubic geometry to six equivalent Y(1) and two equivalent Mn(1) atoms. In the third Au site, Au(3) is bonded in a 7-coordinate geometry to six equivalent Y(1) and one Mn(1) atom. In the fourth Au site, Au(4) is bonded in a 7-coordinate geometry to five equivalent Y(1) and two equivalent Mn(1) atoms.