KCo2(MoO5)2 crystallizes in the monoclinic C2/m space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(4) and four equivalent O(1) atoms. Mo(1) is bonded to one O(2), one O(4), and two equivalent O(1) atoms to form MoO4 tetrahedra that share corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-59°. Co(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CoO6 octahedra that share corners with four equivalent Mo(1)O4 tetrahedra and edges with two equivalent Co(1)O6 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(1), one Mo(1), and one Co(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mo(1) and two equivalent Co(1) atoms. In the third O site, O(3) is bonded in a bent 120 degrees geometry to two equivalent Co(1) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1) and one Mo(1) atom.
KCo2(MoO5)2 crystallizes in the monoclinic C2/m space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(4) and four equivalent O(1) atoms. Both K(1)-O(4) bond lengths are 3.05 Å. All K(1)-O(1) bond lengths are 2.76 Å. Mo(1) is bonded to one O(2), one O(4), and two equivalent O(1) atoms to form MoO4 tetrahedra that share corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-59°. The Mo(1)-O(2) bond length is 1.86 Å. The Mo(1)-O(4) bond length is 1.74 Å. Both Mo(1)-O(1) bond lengths are 1.81 Å. Co(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CoO6 octahedra that share corners with four equivalent Mo(1)O4 tetrahedra and edges with two equivalent Co(1)O6 octahedra. Both Co(1)-O(1) bond lengths are 2.05 Å. Both Co(1)-O(2) bond lengths are 2.18 Å. Both Co(1)-O(3) bond lengths are 1.81 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(1), one Mo(1), and one Co(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mo(1) and two equivalent Co(1) atoms. In the third O site, O(3) is bonded in a bent 120 degrees geometry to two equivalent Co(1) atoms. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1) and one Mo(1) atom.