Re3Se4O3(O2)3 crystallizes in the trigonal R-3m space group. The structure is zero-dimensional and consists of eighteen hydrogen peroxide molecules and three Re3Se4O3 clusters. In each Re3Se4O3 cluster, Re(1) is bonded in a distorted single-bond geometry to one Se(2), three equivalent Se(1), and one O(1) atom. There are two inequivalent Se sites. In the first Se site, Se(2) is bonded in a distorted T-shaped geometry to three equivalent Re(1) atoms. In the second Se site, Se(1) is bonded in a distorted T-shaped geometry to three equivalent Re(1) atoms. O(1) is bonded in a single-bond geometry to one Re(1) atom.
Re3Se4O3(O2)3 crystallizes in the trigonal R-3m space group. The structure is zero-dimensional and consists of eighteen hydrogen peroxide molecules and three Re3Se4O3 clusters. In each Re3Se4O3 cluster, Re(1) is bonded in a distorted single-bond geometry to one Se(2), three equivalent Se(1), and one O(1) atom. The Re(1)-Se(2) bond length is 2.52 Å. There are two shorter (2.53 Å) and one longer (2.54 Å) Re(1)-Se(1) bond length. The Re(1)-O(1) bond length is 1.70 Å. There are two inequivalent Se sites. In the first Se site, Se(2) is bonded in a distorted T-shaped geometry to three equivalent Re(1) atoms. In the second Se site, Se(1) is bonded in a distorted T-shaped geometry to three equivalent Re(1) atoms. O(1) is bonded in a single-bond geometry to one Re(1) atom.