Os(SeCl6)2 is Indium-like structured and crystallizes in the orthorhombic Fdd2 space group. The structure is zero-dimensional and consists of eight Os(SeCl6)2 clusters. Os(1) is bonded in an octahedral geometry to two equivalent Cl(3), two equivalent Cl(4), and two equivalent Cl(6) atoms. Se(1) is bonded in a 3-coordinate geometry to one Cl(1), one Cl(2), one Cl(4), one Cl(5), and one Cl(6) atom. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a single-bond geometry to one Se(1) atom. In the second Cl site, Cl(2) is bonded in a single-bond geometry to one Se(1) atom. In the third Cl site, Cl(3) is bonded in a single-bond geometry to one Os(1) atom. In the fourth Cl site, Cl(4) is bonded in a distorted water-like geometry to one Os(1) and one Se(1) atom. In the fifth Cl site, Cl(5) is bonded in a single-bond geometry to one Se(1) atom. In the sixth Cl site, Cl(6) is bonded in a water-like geometry to one Os(1) and one Se(1) atom.
Os(SeCl6)2 is Indium-like structured and crystallizes in the orthorhombic Fdd2 space group. The structure is zero-dimensional and consists of eight Os(SeCl6)2 clusters. Os(1) is bonded in an octahedral geometry to two equivalent Cl(3), two equivalent Cl(4), and two equivalent Cl(6) atoms. Both Os(1)-Cl(3) bond lengths are 2.33 Å. Both Os(1)-Cl(4) bond lengths are 2.35 Å. Both Os(1)-Cl(6) bond lengths are 2.36 Å. Se(1) is bonded in a 3-coordinate geometry to one Cl(1), one Cl(2), one Cl(4), one Cl(5), and one Cl(6) atom. The Se(1)-Cl(1) bond length is 2.20 Å. The Se(1)-Cl(2) bond length is 2.21 Å. The Se(1)-Cl(4) bond length is 2.86 Å. The Se(1)-Cl(5) bond length is 2.23 Å. The Se(1)-Cl(6) bond length is 2.76 Å. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a single-bond geometry to one Se(1) atom. In the second Cl site, Cl(2) is bonded in a single-bond geometry to one Se(1) atom. In the third Cl site, Cl(3) is bonded in a single-bond geometry to one Os(1) atom. In the fourth Cl site, Cl(4) is bonded in a distorted water-like geometry to one Os(1) and one Se(1) atom. In the fifth Cl site, Cl(5) is bonded in a single-bond geometry to one Se(1) atom. In the sixth Cl site, Cl(6) is bonded in a water-like geometry to one Os(1) and one Se(1) atom.