Bis(2,2′:6′,2′′-terpyridine)­ruthenium(II) bis­(perchlorate) hemihydrate

The asymmetric unit of the title compound, [Ru(C₁₅H₁₁N₃)₂](ClO₄)₂·0.5H₂O, contains one ruthenium–terpiridine complex cation, two perchlorate anions and one half-mol­ecule of water. Face-to-face and face-to-edge π-stacking inter­actions between terpyridine units [centroid–centroid distances = 3.793 (2) and 3.801 (2)  Å] stabilize the crystal lattice The partially occupied water mol­ecule inter­acts with two perchlorate ions via O—H...O hydrogen bonds. In the crystal lattice, the complex cations, perchlorate ion-water pairs and the second perchlorate anions are arranged into columns along b direction.

Tris(1,10-phenanthroline-κ²N,N′)ruthenium(II) bis­(perchlorate)

The asymmetric unit of the title compound, [Ru(C₁₂H₈N₂)₃](ClO₄)₂, contains one octahedrally coordinated Ru^II cation of the ruthenium-phenanthroline complex and three differently occupied perchlorate anions: two, denoted A and B, are located on the twofold axis while another, denoted C, is positioned in the proximity of the twofold screw axis. Perchlorate anions B and C are severely disordered. The occupancies of the two major conformers of anion B refined to 0.302 (6) and 0.198 (6). Perchlorate ion C was modeled in two alternate conformations which refined to occupancies of 0.552 (10) and 0.448 (10).