Hf7Au10 crystallizes in the orthorhombic Cmce space group. There are four inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 10-coordinate geometry to two equivalent Au(3), four equivalent Au(1), and four equivalent Au(2) atoms. In the second Hf site, Hf(2) is bonded in a distorted body-centered cubic geometry to four equivalent Au(1) and four equivalent Au(2) atoms. In the third Hf site, Hf(3) is bonded in a 8-coordinate geometry to four equivalent Au(1) and four equivalent Au(2) atoms. In the fourth Hf site, Hf(4) is bonded in a 7-coordinate geometry to two equivalent Au(1), two equivalent Au(2), and three equivalent Au(3) atoms. There are three inequivalent Au sites. In the first Au site, Au(2) is bonded in a 6-coordinate geometry to one Hf(2), one Hf(4), two equivalent Hf(1), and two equivalent Hf(3) atoms. In the second Au site, Au(3) is bonded in a 5-coordinate geometry to two equivalent Hf(1) and three equivalent Hf(4) atoms. In the third Au site, Au(1) is bonded in a 6-coordinate geometry to one Hf(2), one Hf(4), two equivalent Hf(1), and two equivalent Hf(3) atoms.
Hf7Au10 crystallizes in the orthorhombic Cmce space group. There are four inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 10-coordinate geometry to two equivalent Au(3), four equivalent Au(1), and four equivalent Au(2) atoms. Both Hf(1)-Au(3) bond lengths are 2.91 Å. There are two shorter (2.93 Å) and two longer (2.98 Å) Hf(1)-Au(1) bond lengths. There are two shorter (2.94 Å) and two longer (2.96 Å) Hf(1)-Au(2) bond lengths. In the second Hf site, Hf(2) is bonded in a distorted body-centered cubic geometry to four equivalent Au(1) and four equivalent Au(2) atoms. All Hf(2)-Au(1) bond lengths are 2.81 Å. All Hf(2)-Au(2) bond lengths are 2.81 Å. In the third Hf site, Hf(3) is bonded in a 8-coordinate geometry to four equivalent Au(1) and four equivalent Au(2) atoms. There are two shorter (2.82 Å) and two longer (2.86 Å) Hf(3)-Au(1) bond lengths. There are two shorter (2.84 Å) and two longer (2.85 Å) Hf(3)-Au(2) bond lengths. In the fourth Hf site, Hf(4) is bonded in a 7-coordinate geometry to two equivalent Au(1), two equivalent Au(2), and three equivalent Au(3) atoms. Both Hf(4)-Au(1) bond lengths are 2.87 Å. Both Hf(4)-Au(2) bond lengths are 2.88 Å. There are a spread of Hf(4)-Au(3) bond distances ranging from 2.90-2.97 Å. There are three inequivalent Au sites. In the first Au site, Au(2) is bonded in a 6-coordinate geometry to one Hf(2), one Hf(4), two equivalent Hf(1), and two equivalent Hf(3) atoms. In the second Au site, Au(3) is bonded in a 5-coordinate geometry to two equivalent Hf(1) and three equivalent Hf(4) atoms. In the third Au site, Au(1) is bonded in a 6-coordinate geometry to one Hf(2), one Hf(4), two equivalent Hf(1), and two equivalent Hf(3) atoms.