Yb4Zn11 crystallizes in the tetragonal I4_1/amd space group. Yb(1) is bonded in a 1-coordinate geometry to one Zn(1), one Zn(2), and six equivalent Zn(3) atoms. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 4-coordinate geometry to four equivalent Yb(1) atoms. In the second Zn site, Zn(2) is bonded in a distorted hexagonal planar geometry to two equivalent Yb(1) and four equivalent Zn(3) atoms. In the third Zn site, Zn(3) is bonded in a 9-coordinate geometry to three equivalent Yb(1), one Zn(2), and five equivalent Zn(3) atoms.
Yb4Zn11 crystallizes in the tetragonal I4_1/amd space group. Yb(1) is bonded in a 1-coordinate geometry to one Zn(1), one Zn(2), and six equivalent Zn(3) atoms. The Yb(1)-Zn(1) bond length is 2.82 Å. The Yb(1)-Zn(2) bond length is 3.29 Å. There are a spread of Yb(1)-Zn(3) bond distances ranging from 3.00-3.37 Å. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 4-coordinate geometry to four equivalent Yb(1) atoms. In the second Zn site, Zn(2) is bonded in a distorted hexagonal planar geometry to two equivalent Yb(1) and four equivalent Zn(3) atoms. All Zn(2)-Zn(3) bond lengths are 2.53 Å. In the third Zn site, Zn(3) is bonded in a 9-coordinate geometry to three equivalent Yb(1), one Zn(2), and five equivalent Zn(3) atoms. There are a spread of Zn(3)-Zn(3) bond distances ranging from 2.67-2.92 Å.