Fe(WO4)2 crystallizes in the monoclinic C2/c space group. W(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms. Fe(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one Fe(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent W(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(1) and one Fe(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent W(1) and one Fe(1) atom.
Fe(WO4)2 crystallizes in the monoclinic C2/c space group. W(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms. The W(1)-O(1) bond length is 1.85 Å. The W(1)-O(3) bond length is 1.80 Å. There is one shorter (1.91 Å) and one longer (2.03 Å) W(1)-O(2) bond length. There is one shorter (2.00 Å) and one longer (2.29 Å) W(1)-O(4) bond length. Fe(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms. Both Fe(1)-O(1) bond lengths are 1.95 Å. Both Fe(1)-O(3) bond lengths are 2.05 Å. Both Fe(1)-O(4) bond lengths are 2.03 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one Fe(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent W(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(1) and one Fe(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to two equivalent W(1) and one Fe(1) atom.