HgMoO4 crystallizes in the monoclinic C2/c space group. Mo(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Hg(1) is bonded in a distorted linear geometry to two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Mo(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mo(1) and one Hg(1) atom.
HgMoO4 crystallizes in the monoclinic C2/c space group. Mo(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Both Mo(1)-O(1) bond lengths are 1.72 Å. There are two shorter (1.94 Å) and two longer (2.26 Å) Mo(1)-O(2) bond lengths. Hg(1) is bonded in a distorted linear geometry to two equivalent O(2) atoms. Both Hg(1)-O(2) bond lengths are 2.05 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Mo(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Mo(1) and one Hg(1) atom.