Dichloridobis(methanol-κO)[cis-(±)-2,4,5-tris­(pyridin-2-yl)-2-imidazoline-κ³N²,N³,N⁴]ytterbium(III) chloride

In the crystal structure of the title complex, [YbCl₂(C₁₈H₁₅N₅)(CH₃OH)₂]Cl, the pseudo-penta­gonal–bipyramidal coordination geometry of the Yb^III cation is composed of three N atoms from one cis-(±)-2,4,5-tris­(pyridin-2-yl)imidazoline (HL) ligand, two O atoms from two methanol mol­ecules and two Cl⁻ anions. Chains are formed along [010] through N—H...Cl, O—H...Cl and O—H...N hydrogen bonds.

Tetra­kis(μ-acetato-κ²O:O′)-bis­[(3-pyridine­carboxaldehyde-κN′)]dicopper(II)(Cu—Cu)

The binuclear title compound, [Cu₂(CH₃CO₂)₄(C₆H₅NO)], is located about a center of inversion. The Cu^II atoms are connected [Cu—Cu = 2.6134 (5) Å] and bridged by four acetate ligands. Their distorted octa­hedral coordination geometry is completed by a terminal pyridine N atom of a 3-pyridincarboxaldehyde ligand. In the crystal, the complex mol­ecules are linked by C—H...O hydrogen bonds, forming two-dimensional networks lying parallel to the ab plane. These networks are linked via C—H...O hydrogen bonds involving inversion-related 3-pyridinecarboxaldehyde ligands, forming a three dimensional supra­molecular architecture.