trans-Bis(isoquinoline-3-carboxyl­ato-κ²N,O)bis­(methanol-κO)zinc(II)

In the crystal structure of the title complex, [Zn(C₁₀H₆NO₂)₂(CH₃OH)₂], the Zn atom at a center of inversion has distorted octa­hedral coordination geometry and is bonded to two quinoline N atoms, two carboxyl­ate O atoms and two methanol O atoms. Two isoquinoline-3-carboxyl­ate ligands lie in trans positions, forming the equatorial plane, and the two methanol ligands occupy the axial positions. The complex mol­ecules are linked together by O—H...O hydrogen bonds between the methanol ligands and neighboring carboxyl­ate groups.

(1,1-Cyclo­butane­dicarboxyl­ato-κ²O,O′)(2,2′-biquinoline-κ²N,N′)palladium(II) monohydrate

In the title compound, [Pd(C₆H₆O₄)(C₁₈H₁₂N₂)]·H₂O, the Pd^II atom has a distorted cis-planar four-coordination geometry defined by two O atoms of a bidentate 1,1-cyclo­butane­dicarboxyl­ate anion and two N atoms of the 2,2′-biquinoline ligand. In the crystal structure, centrosymmetric clusters of the complex mol­ecules and water mol­ecules are formed through O—H...O hydrogen bonds.

(2,2′-Biquinoline-κ²N,N′)dichloro­platinum(II)–2,2′-biquinoline (2/1)

In the structure of the title complex, 2[PtCl₂(C₁₈H₁₂N₂)]·C₁₈H₁₂N₂, the metal complex and a free 2,2′-biquinoline molecule are present in a 2:1 ratio. The cocrystallized mol­ecule of 2,2′-biquinoline lies about a center of symmetry. The four-coordinate Pt atom has a distorted cis-square-planar geometry and is bonded by the two N atoms of a 2,2′-biquinoline ligand and two anionic Cl⁻ ions. The overall structure of the metal complex is not planar, and the Pt and Cl atoms deviate significantly from the plane of the 2,2′-biquinoline ligand.