SrZn2Sn2 crystallizes in the monoclinic P2_1/m space group. Sr(1) is bonded in a 16-coordinate geometry to four equivalent Zn(1), four equivalent Zn(2), four equivalent Sn(1), and four equivalent Sn(2) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one Sn(1), and four equivalent Sn(2) atoms. In the second Zn site, Zn(2) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and four equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one Zn(1), and four equivalent Zn(2) atoms. In the second Sn site, Sn(2) is bonded to four equivalent Sr(1) and four equivalent Zn(1) atoms to form a mixture of distorted face and edge-sharing SnSr4Zn4 tetrahedra.
SrZn2Sn2 crystallizes in the monoclinic P2_1/m space group. Sr(1) is bonded in a 16-coordinate geometry to four equivalent Zn(1), four equivalent Zn(2), four equivalent Sn(1), and four equivalent Sn(2) atoms. There are two shorter (3.50 Å) and two longer (3.57 Å) Sr(1)-Zn(1) bond lengths. There are a spread of Sr(1)-Zn(2) bond distances ranging from 3.45-3.76 Å. There are two shorter (3.47 Å) and two longer (3.57 Å) Sr(1)-Sn(1) bond lengths. There are two shorter (3.72 Å) and two longer (3.73 Å) Sr(1)-Sn(2) bond lengths. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one Sn(1), and four equivalent Sn(2) atoms. The Zn(1)-Sn(1) bond length is 2.63 Å. There are a spread of Zn(1)-Sn(2) bond distances ranging from 2.79-2.82 Å. In the second Zn site, Zn(2) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and four equivalent Sn(1) atoms. There are a spread of Zn(2)-Sn(1) bond distances ranging from 2.73-2.77 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), one Zn(1), and four equivalent Zn(2) atoms. In the second Sn site, Sn(2) is bonded to four equivalent Sr(1) and four equivalent Zn(1) atoms to form a mixture of distorted face and edge-sharing SnSr4Zn4 tetrahedra.