Sc7P3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 3-coordinate geometry to three equivalent P(1) atoms. In the second Sc site, Sc(3) is bonded in a 4-coordinate geometry to four equivalent P(1) atoms. In the third Sc site, Sc(2) is bonded in a 3-coordinate geometry to four equivalent P(1) atoms. P(1) is bonded in a 9-coordinate geometry to one Sc(1), four equivalent Sc(2), and four equivalent Sc(3) atoms.
Sc7P3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 3-coordinate geometry to three equivalent P(1) atoms. All Sc(1)-P(1) bond lengths are 2.70 Å. In the second Sc site, Sc(3) is bonded in a 4-coordinate geometry to four equivalent P(1) atoms. There are two shorter (2.70 Å) and two longer (3.03 Å) Sc(3)-P(1) bond lengths. In the third Sc site, Sc(2) is bonded in a 3-coordinate geometry to four equivalent P(1) atoms. There are a spread of Sc(2)-P(1) bond distances ranging from 2.64-3.32 Å. P(1) is bonded in a 9-coordinate geometry to one Sc(1), four equivalent Sc(2), and four equivalent Sc(3) atoms.