Di-μ-hydroxido-κ⁴O:O-di-μ-perchlorato-κ⁴O:O′-bis­[(2,2′-bi­pyridine-κ²N,N′)copper(II)]

In the title binuclear copper(II) complex, [Cu₂(ClO₄)₂(OH)₂(C₁₀H₈N₂)₂], the Cu^II ion is coordinated in the form of a Jahn–Teller distorted octahedron by two bi­pyridine N atoms, two perchlorate O atoms and two hydroxide O atoms, and displays a distorted octa­hedral geometry. The mol­ecule belongs to the symmetry point group C_2h. The Cu^II ion is located on a twofold rotation axis and the hydroxide and perchlorate ligands are located on a mirror plane. Within the dinuclear mol­ecule, the Cu...Cu separation is 2.8614 (7) Å. The crystal structure exhibits O—H...O, C—H...O and π–π [centroid–centroid distance = 3.5374 (13) Å] inter­actions.

1,2-Bis(2-hy­droxy-5-methyl­benzyl­idene)hydrazine

The mol­ecular structure of the title compound, C₁₆H₁₆N₂O₂, is stabilized by intra­molecular O—H...N hydrogen bonds with S(6) graph-set motifs, so that the mol­ecule is almost planar, with a C=N—N=C torsion angle of −179.7 (2)° and a dihedral angle of 1.82 (12)° between the aromatic rings. In the crystal, weak C—H...π inter­actions lead to the formation of a three-dimensional network.

6-Chloro-2-(4-meth­oxy­phen­yl)-4-phenyl­quinoline

In the title compound, C₂₂H₁₆ClNO, the quinoline ring system makes dihedral angles of 56.30 (6) and 7.93 (6)°, respectively, with the adjacent phenyl and benzene rings. The dihedral angle between these phenyl and benzene rings is 56.97 (8)°. In the crystal, weak C—H...π and π–π [centroid–centroid distances of 3.7699 (9) and 3.8390 (9) Å] inter­actions link the mol­ecules into a layer parallel to the ab plane.