NaMoSbO5 crystallizes in the monoclinic P2_1/c space group. Na(1) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(3) atoms to form distorted NaO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with five equivalent Mo(1)O4 tetrahedra, and  an edgeedge with one Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 80°. Mo(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MoO4 tetrahedra that share corners with five equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-53°. Sb(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(4), and two equivalent O(5) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Mo(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one Mo(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to two equivalent Na(1) and one Mo(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(1) and one Sb(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Na(1) and two equivalent Sb(1) atoms.
NaMoSbO5 crystallizes in the monoclinic P2_1/c space group. Na(1) is bonded to one O(1), one O(5), two equivalent O(2), and two equivalent O(3) atoms to form distorted NaO6 octahedra that share corners with two equivalent Na(1)O6 octahedra, corners with five equivalent Mo(1)O4 tetrahedra, and  an edgeedge with one Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 80°. The Na(1)-O(1) bond length is 2.64 Å. The Na(1)-O(5) bond length is 2.41 Å. There is one shorter (2.45 Å) and one longer (2.50 Å) Na(1)-O(2) bond length. Both Na(1)-O(3) bond lengths are 2.44 Å. Mo(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form MoO4 tetrahedra that share corners with five equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-53°. The Mo(1)-O(1) bond length is 1.85 Å. The Mo(1)-O(2) bond length is 1.77 Å. The Mo(1)-O(3) bond length is 1.77 Å. The Mo(1)-O(4) bond length is 1.83 Å. Sb(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(4), and two equivalent O(5) atoms. The Sb(1)-O(1) bond length is 2.18 Å. The Sb(1)-O(4) bond length is 2.31 Å. There is one shorter (1.99 Å) and one longer (2.00 Å) Sb(1)-O(5) bond length. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Mo(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one Mo(1) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to two equivalent Na(1) and one Mo(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(1) and one Sb(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Na(1) and two equivalent Sb(1) atoms.