Cs6ZnGe8 crystallizes in the orthorhombic Fmm2 space group. There are eight inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 8-coordinate geometry to one Ge(5), one Ge(7), two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(2), one Ge(4), one Ge(5), one Ge(6), and one Ge(7) atom. In the third Cs site, Cs(3) is bonded in a 8-coordinate geometry to one Ge(2), one Ge(3), one Ge(6), two equivalent Ge(1), and three equivalent Ge(4) atoms. In the fourth Cs site, Cs(4) is bonded in a 6-coordinate geometry to two equivalent Ge(3), two equivalent Ge(5), and two equivalent Ge(6) atoms. In the fifth Cs site, Cs(5) is bonded in a 9-coordinate geometry to one Zn(2), two equivalent Ge(1), two equivalent Ge(2), two equivalent Ge(6), and two equivalent Ge(7) atoms. In the sixth Cs site, Cs(6) is bonded in a 9-coordinate geometry to one Zn(2), four equivalent Ge(3), and four equivalent Ge(6) atoms. In the seventh Cs site, Cs(7) is bonded in a 2-coordinate geometry to two equivalent Ge(7), four equivalent Ge(2), and four equivalent Ge(3) atoms. In the eighth Cs site, Cs(8) is bonded in a 2-coordinate geometry to two equivalent Ge(2), two equivalent Ge(3), two equivalent Ge(6), and four equivalent Ge(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to one Cs(6), two equivalent Cs(5), two equivalent Ge(7), and four equivalent Ge(6) atoms. There are seven inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to one Cs(2), one Cs(5), two equivalent Cs(3), two equivalent Cs(8), one Zn(1), one Ge(2), one Ge(3), and one Ge(4) atom. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to one Cs(1), one Cs(2), one Cs(3), one Cs(5), one Cs(7), one Cs(8), one Zn(1), one Ge(1), one Ge(3), and one Ge(4) atom. In the third Ge site, Ge(3) is bonded in a 10-coordinate geometry to one Cs(1), one Cs(3), one Cs(4), one Cs(6), one Cs(7), one Cs(8), one Zn(1), one Ge(1), one Ge(2), and one Ge(4) atom. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to one Cs(1), one Cs(2), three equivalent Cs(3), one Ge(1), one Ge(2), and one Ge(3) atom. In the fifth Ge site, Ge(5) is bonded in a 8-coordinate geometry to one Cs(1), two equivalent Cs(2), two equivalent Cs(4), one Ge(7), and two equivalent Ge(6) atoms. In the sixth Ge site, Ge(6) is bonded in a 10-coordinate geometry to one Cs(2), one Cs(3), one Cs(4), one Cs(5), one Cs(6), one Cs(8), one Zn(2), one Ge(5), one Ge(6), and one Ge(7) atom. In the seventh Ge site, Ge(7) is bonded in a 10-coordinate geometry to one Cs(1), one Cs(7), two equivalent Cs(2), two equivalent Cs(5), one Zn(2), one Ge(5), and two equivalent Ge(6) atoms.
Cs6ZnGe8 crystallizes in the orthorhombic Fmm2 space group. There are eight inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 8-coordinate geometry to one Ge(5), one Ge(7), two equivalent Ge(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. The Cs(1)-Ge(5) bond length is 3.86 Å. The Cs(1)-Ge(7) bond length is 3.84 Å. Both Cs(1)-Ge(2) bond lengths are 3.97 Å. Both Cs(1)-Ge(3) bond lengths are 3.87 Å. Both Cs(1)-Ge(4) bond lengths are 4.02 Å. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to one Ge(1), one Ge(2), one Ge(4), one Ge(5), one Ge(6), and one Ge(7) atom. The Cs(2)-Ge(1) bond length is 3.67 Å. The Cs(2)-Ge(2) bond length is 3.73 Å. The Cs(2)-Ge(4) bond length is 3.76 Å. The Cs(2)-Ge(5) bond length is 3.71 Å. The Cs(2)-Ge(6) bond length is 3.80 Å. The Cs(2)-Ge(7) bond length is 3.87 Å. In the third Cs site, Cs(3) is bonded in a 8-coordinate geometry to one Ge(2), one Ge(3), one Ge(6), two equivalent Ge(1), and three equivalent Ge(4) atoms. The Cs(3)-Ge(2) bond length is 3.94 Å. The Cs(3)-Ge(3) bond length is 4.03 Å. The Cs(3)-Ge(6) bond length is 3.78 Å. There is one shorter (3.88 Å) and one longer (4.00 Å) Cs(3)-Ge(1) bond length. There are a spread of Cs(3)-Ge(4) bond distances ranging from 3.93-4.25 Å. In the fourth Cs site, Cs(4) is bonded in a 6-coordinate geometry to two equivalent Ge(3), two equivalent Ge(5), and two equivalent Ge(6) atoms. Both Cs(4)-Ge(3) bond lengths are 3.68 Å. There is one shorter (3.74 Å) and one longer (4.17 Å) Cs(4)-Ge(5) bond length. Both Cs(4)-Ge(6) bond lengths are 3.90 Å. In the fifth Cs site, Cs(5) is bonded in a 9-coordinate geometry to one Zn(2), two equivalent Ge(1), two equivalent Ge(2), two equivalent Ge(6), and two equivalent Ge(7) atoms. The Cs(5)-Zn(2) bond length is 3.78 Å. Both Cs(5)-Ge(1) bond lengths are 3.75 Å. Both Cs(5)-Ge(2) bond lengths are 3.72 Å. Both Cs(5)-Ge(6) bond lengths are 3.96 Å. Both Cs(5)-Ge(7) bond lengths are 4.00 Å. In the sixth Cs site, Cs(6) is bonded in a 9-coordinate geometry to one Zn(2), four equivalent Ge(3), and four equivalent Ge(6) atoms. The Cs(6)-Zn(2) bond length is 3.77 Å. All Cs(6)-Ge(3) bond lengths are 3.74 Å. All Cs(6)-Ge(6) bond lengths are 3.93 Å. In the seventh Cs site, Cs(7) is bonded in a 2-coordinate geometry to two equivalent Ge(7), four equivalent Ge(2), and four equivalent Ge(3) atoms. Both Cs(7)-Ge(7) bond lengths are 3.88 Å. All Cs(7)-Ge(2) bond lengths are 4.19 Å. All Cs(7)-Ge(3) bond lengths are 4.22 Å. In the eighth Cs site, Cs(8) is bonded in a 2-coordinate geometry to two equivalent Ge(2), two equivalent Ge(3), two equivalent Ge(6), and four equivalent Ge(1) atoms. Both Cs(8)-Ge(2) bond lengths are 4.23 Å. Both Cs(8)-Ge(3) bond lengths are 4.10 Å. Both Cs(8)-Ge(6) bond lengths are 3.94 Å. There are two shorter (4.11 Å) and two longer (4.18 Å) Cs(8)-Ge(1) bond lengths. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. Both Zn(1)-Ge(1) bond lengths are 2.70 Å. Both Zn(1)-Ge(2) bond lengths are 2.69 Å. Both Zn(1)-Ge(3) bond lengths are 2.73 Å. In the second Zn site, Zn(2) is bonded in a 9-coordinate geometry to one Cs(6), two equivalent Cs(5), two equivalent Ge(7), and four equivalent Ge(6) atoms. Both Zn(2)-Ge(7) bond lengths are 2.70 Å. All Zn(2)-Ge(6) bond lengths are 2.71 Å. There are seven inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 10-coordinate geometry to one Cs(2), one Cs(5), two equivalent Cs(3), two equivalent Cs(8), one Zn(1), one Ge(2), one Ge(3), and one Ge(4) atom. The Ge(1)-Ge(2) bond length is 2.68 Å. The Ge(1)-Ge(3) bond length is 2.66 Å. The Ge(1)-Ge(4) bond length is 2.58 Å. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to one Cs(1), one Cs(2), one Cs(3), one Cs(5), one Cs(7), one Cs(8), one Zn(1), one Ge(1), one Ge(3), and one Ge(4) atom. The Ge(2)-Ge(3) bond length is 2.67 Å. The Ge(2)-Ge(4) bond length is 2.57 Å. In the third Ge site, Ge(3) is bonded in a 10-coordinate geometry to one Cs(1), one Cs(3), one Cs(4), one Cs(6), one Cs(7), one Cs(8), one Zn(1), one Ge(1), one Ge(2), and one Ge(4) atom. The Ge(3)-Ge(4) bond length is 2.58 Å. In the fourth Ge site, Ge(4) is bonded in a 8-coordinate geometry to one Cs(1), one Cs(2), three equivalent Cs(3), one Ge(1), one Ge(2), and one Ge(3) atom. In the fifth Ge site, Ge(5) is bonded in a 8-coordinate geometry to one Cs(1), two equivalent Cs(2), two equivalent Cs(4), one Ge(7), and two equivalent Ge(6) atoms. The Ge(5)-Ge(7) bond length is 2.57 Å. Both Ge(5)-Ge(6) bond lengths are 2.57 Å. In the sixth Ge site, Ge(6) is bonded in a 10-coordinate geometry to one Cs(2), one Cs(3), one Cs(4), one Cs(5), one Cs(6), one Cs(8), one Zn(2), one Ge(5), one Ge(6), and one Ge(7) atom. The Ge(6)-Ge(6) bond length is 2.68 Å. The Ge(6)-Ge(7) bond length is 2.69 Å. In the seventh Ge site, Ge(7) is bonded in a 10-coordinate geometry to one Cs(1), one Cs(7), two equivalent Cs(2), two equivalent Cs(5), one Zn(2), one Ge(5), and two equivalent Ge(6) atoms.