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ScP is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sc3+ is bonded in a body-centered cubic geometry to eight equivalent P3- atoms. All Sc–P bond lengths are 2.84 Å. P3- is bonded in a body-centered cubic geometry to eight equivalent Sc3+ atoms.
Sc3P2 is Stibnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Sc2+ sites. In the first Sc2+ site, Sc2+ is bonded in a 5-coordinate geometry to five P3- atoms. There are a spread of Sc–P bond distances ranging from 2.67–3.20 Å. In the second Sc2+ site, Sc2+ is bonded to five P3- atoms to form a mixture of corner and edge-sharing ScP5 square pyramids. There are a spread of Sc–P bond distances ranging from 2.60–2.76 Å. In the third Sc2+ site, Sc2+ is bonded to five P3- atoms to form a mixture of distorted corner and edge-sharing ScP5 square pyramids. There are a spread of Sc–P bond distances ranging from 2.67–2.71 Å. There are two inequivalent P3- sites. In the first P3- site, P3- is bonded to seven Sc2+ atoms to form a mixture of distorted corner and edge-sharing PSc7 pentagonal bipyramids. In the second P3- site, P3- is bonded in a 7-coordinate geometry to eight Sc2+ atoms.
Sc3P2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Sc2+ sites. In the first Sc2+ site, Sc2+ is bonded to five P3- atoms to form a mixture of face, edge, and corner-sharing ScP5 square pyramids. There are a spread of Sc–P bond distances ranging from 2.61–2.75 Å. In the second Sc2+ site, Sc2+ is bonded to five P3- atoms to form a mixture of face, edge, and corner-sharing ScP5 square pyramids. There are a spread of Sc–P bond distances ranging from 2.60–2.78 Å. In the third Sc2+ site, Sc2+ is bonded to five P3- atoms to form a mixture of distorted edge and corner-sharing ScP5 square pyramids. There are a spread of Sc–P bond distances ranging from 2.65–3.00 Å. There are two inequivalent P3- sites. In the first P3- site, P3- is bonded to seven Sc2+ atoms to form distorted edge-sharing PSc7 pentagonal bipyramids. In the second P3- site, P3- is bonded in a 8-coordinate geometry to eight Sc2+ atoms.
ScP is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sc3+ is bonded to six equivalent P3- atoms to form a mixture of corner and edge-sharing ScP6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sc–P bond lengths are 2.66 Å. P3- is bonded to six equivalent Sc3+ atoms to form a mixture of corner and edge-sharing PSc6 octahedra. The corner-sharing octahedral tilt angles are 0°.
Sc3P is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Sc sites. In the first Sc site, Sc is bonded to eight Sc and four equivalent P atoms to form distorted ScSc8P4 cuboctahedra that share corners with twelve equivalent ScSc8P4 cuboctahedra, edges with eight equivalent ScSc8P4 cuboctahedra, edges with eight equivalent PSc12 cuboctahedra, faces with four equivalent PSc12 cuboctahedra, and faces with ten equivalent ScSc8P4 cuboctahedra. There are four shorter (2.88 Å) and four longer (3.12 Å) Sc–Sc bond lengths. All Sc–P bond lengths are 3.12 Å. In the second Sc site, Sc is bonded in a square co-planar geometry to eight equivalent Sc and four equivalent P atoms. All Sc–P bond lengths are 2.88 Å. P is bonded to twelve Sc atoms to form PSc12 cuboctahedra that share corners with four equivalent PSc12 cuboctahedra, edges with eight equivalent PSc12 cuboctahedra, edges with sixteen equivalent ScSc8P4 cuboctahedra, faces with four equivalent PSc12 cuboctahedra, and faces with eight equivalent ScSc8P4 cuboctahedra.
ScP is Zincblende, Sphalerite structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Sc3+ is bonded to four equivalent P3- atoms to form corner-sharing ScP4 tetrahedra. All Sc–P bond lengths are 2.57 Å. P3- is bonded to four equivalent Sc3+ atoms to form corner-sharing PSc4 tetrahedra.
Sc3P is Cementite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Sc sites. In the first Sc site, Sc is bonded in a 3-coordinate geometry to three equivalent P atoms. There are two shorter (2.69 Å) and one longer (2.85 Å) Sc–P bond lengths. In the second Sc site, Sc is bonded in a distorted bent 150 degrees geometry to two equivalent P atoms. There are one shorter (2.67 Å) and one longer (2.70 Å) Sc–P bond lengths. P is bonded in a 8-coordinate geometry to eight Sc atoms.