Re3O10 crystallizes in the monoclinic C2 space group. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form corner-sharing ReO5 square pyramids. In the second Re site, Re(2) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Re(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Re(1) atoms. In the third O site, O(3) is bonded in a linear geometry to two equivalent Re(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Re(1) and one Re(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Re(2) and one O(6) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Re(2) and one O(5) atom.
Re3O10 crystallizes in the monoclinic C2 space group. There are two inequivalent Re sites. In the first Re site, Re(1) is bonded to one O(2), one O(3), one O(4), and two equivalent O(1) atoms to form corner-sharing ReO5 square pyramids. The Re(1)-O(2) bond length is 1.89 Å. The Re(1)-O(3) bond length is 1.89 Å. The Re(1)-O(4) bond length is 1.88 Å. There is one shorter (1.89 Å) and one longer (1.90 Å) Re(1)-O(1) bond length. In the second Re site, Re(2) is bonded in a 6-coordinate geometry to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms. Both Re(2)-O(4) bond lengths are 1.85 Å. Both Re(2)-O(5) bond lengths are 1.90 Å. Both Re(2)-O(6) bond lengths are 2.01 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Re(1) atoms. In the second O site, O(2) is bonded in a linear geometry to two equivalent Re(1) atoms. In the third O site, O(3) is bonded in a linear geometry to two equivalent Re(1) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Re(1) and one Re(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Re(2) and one O(6) atom. The O(5)-O(6) bond length is 1.45 Å. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Re(2) and one O(5) atom.