Ca2ScPt7P3 crystallizes in the tetragonal I-4m2 space group. Ca(1) is bonded in a 15-coordinate geometry to two equivalent Pt(1), two equivalent Pt(2), five equivalent Pt(3), two equivalent P(2), and four equivalent P(1) atoms. Sc(1) is bonded to four equivalent Pt(1), four equivalent Pt(2), and four equivalent Pt(4) atoms to form a mixture of face and corner-sharing ScPt12 cuboctahedra. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Sc(1), two equivalent Pt(4), four equivalent Pt(2), and two equivalent P(1) atoms. In the second Pt site, Pt(2) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Sc(1), two equivalent Pt(4), four equivalent Pt(1), and two equivalent P(1) atoms. In the third Pt site, Pt(3) is bonded in a 7-coordinate geometry to five equivalent Ca(1), one P(1), and two equivalent P(2) atoms. In the fourth Pt site, Pt(4) is bonded in a distorted square co-planar geometry to four equivalent Sc(1), four equivalent Pt(1), and four equivalent Pt(2) atoms. There are five inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. In the second P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. In the third P site, P(2) is bonded in a 8-coordinate geometry to four equivalent Ca(1) and four equivalent Pt(3) atoms. In the fourth P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. In the fifth P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms.
Ca2ScPt7P3 crystallizes in the tetragonal I-4m2 space group. Ca(1) is bonded in a 15-coordinate geometry to two equivalent Pt(1), two equivalent Pt(2), five equivalent Pt(3), two equivalent P(2), and four equivalent P(1) atoms. Both Ca(1)-Pt(1) bond lengths are 3.29 Å. Both Ca(1)-Pt(2) bond lengths are 3.25 Å. There are four shorter (3.08 Å) and one longer (3.49 Å) Ca(1)-Pt(3) bond length. Both Ca(1)-P(2) bond lengths are 3.07 Å. All Ca(1)-P(1) bond lengths are 3.12 Å. Sc(1) is bonded to four equivalent Pt(1), four equivalent Pt(2), and four equivalent Pt(4) atoms to form a mixture of face and corner-sharing ScPt12 cuboctahedra. All Sc(1)-Pt(1) bond lengths are 2.85 Å. All Sc(1)-Pt(2) bond lengths are 2.88 Å. All Sc(1)-Pt(4) bond lengths are 2.88 Å. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Sc(1), two equivalent Pt(4), four equivalent Pt(2), and two equivalent P(1) atoms. Both Pt(1)-Pt(4) bond lengths are 2.85 Å. All Pt(1)-Pt(2) bond lengths are 2.88 Å. Both Pt(1)-P(1) bond lengths are 2.46 Å. In the second Pt site, Pt(2) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Sc(1), two equivalent Pt(4), four equivalent Pt(1), and two equivalent P(1) atoms. Both Pt(2)-Pt(4) bond lengths are 2.88 Å. Both Pt(2)-P(1) bond lengths are 2.43 Å. In the third Pt site, Pt(3) is bonded in a 7-coordinate geometry to five equivalent Ca(1), one P(1), and two equivalent P(2) atoms. The Pt(3)-P(1) bond length is 2.30 Å. Both Pt(3)-P(2) bond lengths are 2.36 Å. In the fourth Pt site, Pt(4) is bonded in a distorted square co-planar geometry to four equivalent Sc(1), four equivalent Pt(1), and four equivalent Pt(2) atoms. There are five inequivalent P sites. In the first P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. All P(1)-Ca(1) bond lengths are 3.12 Å. In the second P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. The P(1)-Pt(3) bond length is 2.30 Å. Both P(1)-Pt(1) bond lengths are 2.46 Å. Both P(1)-Pt(2) bond lengths are 2.43 Å. In the third P site, P(2) is bonded in a 8-coordinate geometry to four equivalent Ca(1) and four equivalent Pt(3) atoms. In the fourth P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. All P(1)-Ca(1) bond lengths are 3.12 Å. The P(1)-Pt(3) bond length is 2.30 Å. Both P(1)-Pt(1) bond lengths are 2.46 Å. Both P(1)-Pt(2) bond lengths are 2.43 Å. In the fifth P site, P(1) is bonded in a 9-coordinate geometry to four equivalent Ca(1), one Pt(3), two equivalent Pt(1), and two equivalent Pt(2) atoms. All P(1)-Ca(1) bond lengths are 3.12 Å. The P(1)-Pt(3) bond length is 2.30 Å. Both P(1)-Pt(1) bond lengths are 2.46 Å. Both P(1)-Pt(2) bond lengths are 2.43 Å.