BaHg11 crystallizes in the cubic Pm-3m space group. Ba(1) is bonded in a 20-coordinate geometry to four Hg(4,4); eight equivalent Hg(2); and eight equivalent Hg(3) atoms. There are five inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a cuboctahedral geometry to twelve Hg(4,4) atoms. In the second Hg site, Hg(2) is bonded in a 9-coordinate geometry to three equivalent Ba(1), three equivalent Hg(2), and three equivalent Hg(3) atoms. In the third Hg site, Hg(3) is bonded in a distorted q6 geometry to two equivalent Ba(1), two equivalent Hg(2), two equivalent Hg(3), and four equivalent Hg(4) atoms. In the fourth Hg site, Hg(4) is bonded in a 10-coordinate geometry to one Ba(1), one Hg(1), four equivalent Hg(3), and four equivalent Hg(4) atoms. In the fifth Hg site, Hg(4) is bonded in a 10-coordinate geometry to one Ba(1); one Hg(1); four equivalent Hg(3); and four Hg(4,4) atoms.
BaHg11 crystallizes in the cubic Pm-3m space group. Ba(1) is bonded in a 20-coordinate geometry to four Hg(4,4); eight equivalent Hg(2); and eight equivalent Hg(3) atoms. All Ba(1)-Hg(4,4) bond lengths are 3.78 Å. All Ba(1)-Hg(2) bond lengths are 4.09 Å. All Ba(1)-Hg(3) bond lengths are 3.78 Å. There are five inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a cuboctahedral geometry to twelve Hg(4,4) atoms. All Hg(1)-Hg(4,4) bond lengths are 3.29 Å. In the second Hg site, Hg(2) is bonded in a 9-coordinate geometry to three equivalent Ba(1), three equivalent Hg(2), and three equivalent Hg(3) atoms. All Hg(2)-Hg(2) bond lengths are 3.06 Å. All Hg(2)-Hg(3) bond lengths are 3.12 Å. In the third Hg site, Hg(3) is bonded in a distorted q6 geometry to two equivalent Ba(1), two equivalent Hg(2), two equivalent Hg(3), and four equivalent Hg(4) atoms. Both Hg(3)-Hg(3) bond lengths are 3.09 Å. All Hg(3)-Hg(4) bond lengths are 3.18 Å. In the fourth Hg site, Hg(4) is bonded in a 10-coordinate geometry to one Ba(1), one Hg(1), four equivalent Hg(3), and four equivalent Hg(4) atoms. All Hg(4)-Hg(4) bond lengths are 3.29 Å. In the fifth Hg site, Hg(4) is bonded in a 10-coordinate geometry to one Ba(1); one Hg(1); four equivalent Hg(3); and four Hg(4,4) atoms. All Hg(4)-Hg(3) bond lengths are 3.18 Å. All Hg(4)-Hg(4,4) bond lengths are 3.29 Å.