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CdSb is SC16 CuCl, stable at 5GPa structured and crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Cd2+ is bonded to four equivalent Sb2- atoms to form a mixture of corner and edge-sharing CdSb4 tetrahedra. There are a spread of Cd–Sb bond distances ranging from 2.86–3.16 Å. Sb2- is bonded in a 5-coordinate geometry to four equivalent Cd2+ and one Sb2- atom. The Sb–Sb bond length is 2.86 Å.
CdSb is High Pressure Cadmuum Telluride structured and crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. Cd2+ is bonded in a distorted rectangular see-saw-like geometry to four equivalent Sb2- atoms. All Cd–Sb bond lengths are 3.18 Å. Sb2- is bonded to four equivalent Cd2+ and four equivalent Sb2- atoms to form a mixture of distorted edge and corner-sharing SbCd4Sb4 hexagonal bipyramids. There are two shorter (3.11 Å) and two longer (3.24 Å) Sb–Sb bond lengths.