ScMo3O8 is Hydrophilite-derived structured and crystallizes in the monoclinic C2 space group. Sc(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form ScO6 octahedra that share corners with four equivalent Mo(1)O6 octahedra and corners with eight equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MoO6 octahedra that share corners with four equivalent Sc(1)O6 octahedra and edges with four equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the second Mo site, Mo(2) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form MoO6 octahedra that share corners with four equivalent Sc(1)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with two equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Sc(1) and two equivalent Mo(2) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mo(1) and two equivalent Mo(2) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Sc(1), one Mo(1), and one Mo(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sc(1), one Mo(1), and one Mo(2) atom.
ScMo3O8 is Hydrophilite-derived structured and crystallizes in the monoclinic C2 space group. Sc(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form ScO6 octahedra that share corners with four equivalent Mo(1)O6 octahedra and corners with eight equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. Both Sc(1)-O(1) bond lengths are 2.15 Å. Both Sc(1)-O(3) bond lengths are 2.25 Å. Both Sc(1)-O(4) bond lengths are 2.17 Å. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form MoO6 octahedra that share corners with four equivalent Sc(1)O6 octahedra and edges with four equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. Both Mo(1)-O(2) bond lengths are 1.98 Å. Both Mo(1)-O(3) bond lengths are 1.95 Å. Both Mo(1)-O(4) bond lengths are 2.07 Å. In the second Mo site, Mo(2) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form MoO6 octahedra that share corners with four equivalent Sc(1)O6 octahedra, edges with two equivalent Mo(1)O6 octahedra, and edges with two equivalent Mo(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-53°. The Mo(2)-O(3) bond length is 2.13 Å. The Mo(2)-O(4) bond length is 1.99 Å. There is one shorter (2.05 Å) and one longer (2.08 Å) Mo(2)-O(1) bond length. There is one shorter (2.07 Å) and one longer (2.10 Å) Mo(2)-O(2) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Sc(1) and two equivalent Mo(2) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mo(1) and two equivalent Mo(2) atoms. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Sc(1), one Mo(1), and one Mo(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sc(1), one Mo(1), and one Mo(2) atom.