SrCd11 crystallizes in the tetragonal I4_1/amd space group. Sr(1) is bonded in a 18-coordinate geometry to two equivalent Cd(3) and sixteen equivalent Cd(1) atoms. There are three inequivalent Cd sites. In the first Cd site, Cd(3) is bonded in a 14-coordinate geometry to two equivalent Sr(1), four equivalent Cd(2), and eight equivalent Cd(1) atoms. In the second Cd site, Cd(1) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cd(3), two equivalent Cd(2), and seven equivalent Cd(1) atoms. In the third Cd site, Cd(2) is bonded in a distorted q6 geometry to two equivalent Cd(3) and eight equivalent Cd(1) atoms.
SrCd11 crystallizes in the tetragonal I4_1/amd space group. Sr(1) is bonded in a 18-coordinate geometry to two equivalent Cd(3) and sixteen equivalent Cd(1) atoms. Both Sr(1)-Cd(3) bond lengths are 3.85 Å. There are eight shorter (3.67 Å) and eight longer (3.85 Å) Sr(1)-Cd(1) bond lengths. There are three inequivalent Cd sites. In the first Cd site, Cd(3) is bonded in a 14-coordinate geometry to two equivalent Sr(1), four equivalent Cd(2), and eight equivalent Cd(1) atoms. All Cd(3)-Cd(2) bond lengths are 3.15 Å. All Cd(3)-Cd(1) bond lengths are 3.24 Å. In the second Cd site, Cd(1) is bonded in a 12-coordinate geometry to two equivalent Sr(1), one Cd(3), two equivalent Cd(2), and seven equivalent Cd(1) atoms. There is one shorter (2.95 Å) and one longer (2.96 Å) Cd(1)-Cd(2) bond length. There are a spread of Cd(1)-Cd(1) bond distances ranging from 2.90-3.40 Å. In the third Cd site, Cd(2) is bonded in a distorted q6 geometry to two equivalent Cd(3) and eight equivalent Cd(1) atoms.