KSc(MoO4)2 crystallizes in the trigonal P-3m1 space group. K(1) is bonded to six equivalent O(1) atoms to form distorted KO6 cuboctahedra that share corners with six equivalent Mo(1)O4 tetrahedra and faces with two equivalent Sc(1)O6 octahedra. Sc(1) is bonded to six equivalent O(1) atoms to form ScO6 octahedra that share corners with six equivalent Mo(1)O4 tetrahedra and faces with two equivalent K(1)O6 cuboctahedra. Mo(1) is bonded to one O(2) and three equivalent O(1) atoms to form MoO4 tetrahedra that share corners with three equivalent K(1)O6 cuboctahedra and corners with three equivalent Sc(1)O6 octahedra. The corner-sharing octahedral tilt angles are 19°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Sc(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Mo(1) atom.
KSc(MoO4)2 crystallizes in the trigonal P-3m1 space group. K(1) is bonded to six equivalent O(1) atoms to form distorted KO6 cuboctahedra that share corners with six equivalent Mo(1)O4 tetrahedra and faces with two equivalent Sc(1)O6 octahedra. All K(1)-O(1) bond lengths are 2.95 Å. Sc(1) is bonded to six equivalent O(1) atoms to form ScO6 octahedra that share corners with six equivalent Mo(1)O4 tetrahedra and faces with two equivalent K(1)O6 cuboctahedra. All Sc(1)-O(1) bond lengths are 2.11 Å. Mo(1) is bonded to one O(2) and three equivalent O(1) atoms to form MoO4 tetrahedra that share corners with three equivalent K(1)O6 cuboctahedra and corners with three equivalent Sc(1)O6 octahedra. The corner-sharing octahedral tilt angles are 19°. The Mo(1)-O(2) bond length is 1.75 Å. All Mo(1)-O(1) bond lengths are 1.81 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Sc(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Mo(1) atom.