catena-Poly[copper(II)-bis­(μ-2-formyl-6-meth­oxy­phenolato-κ⁴O²,O¹:O¹,O⁶)-[(methanol-κO)sodium]-μ-perchlorato-κ²O:O′]

In the title heterodinuclear complex, [CuNa(C₈H₇O₃)₂(ClO₄)(CH₃OH)]_n, the Cu^II ion is five-coordinated by four O atoms from two 2-formyl-6-meth­oxy­phenolate anions and one O atom from a perchlorate anion in a distorted square-pyramidal geometry. The Na⁺ ion is six-coordinated by four O atoms from two 2-formyl-6-meth­oxy­phenolate ligands, one O atom of a methanol mol­ecule and one O atom of a perchlorate anion. The perchlorate anions link the Na⁺ and Cu^II ions, forming a chain along [010]. O—H...O hydrogen bonds connect the chains. π–π inter­actions are present between the benzene rings [centroid–centroid distances = 3.566 (2) and 3.702 (2) Å]. The O atoms of the perchlorate anion are disordered over two sets of sites, with an occupancy ratio of 0.481 (8):0.519 (8).

(Acetyl­acetonato-κ²O,O′)(phthalo­cyaninato-κ⁴N)(phen­an­throline-κ²N,N′)erbium(III)

The title complex, [Er(C₃₂H₁₆N₈)(C₅H₇O₂)(C₁₂H₈N₂)], possesses a mirror plane and the asymmetric unit is half of the mol­ecule. The Er^III cation, lying on the mirror plane, is eight-coordinated by two O atoms from acetyl­acetone, two N (N_phen) atoms from 1,10-phenanthroline and four isoindole N (N_iso) atoms from the phthalocyanine ligand in an anti­prismatic geometry. The Er—N distances are in the range 2.376 (5)–2.529 (4) Å and the Er—O distance is 2.272 (3) Å. Notably, the Er—N_iso bonds are shorter than the Er—N_phen bonds, but longer than the Er—O bonds.

Trichlorido{μ-6,6′-dimeth­oxy-2,2′-[cyclo­hexane-1,2-diylbis(nitrilo­methanylyl­idene)]diphenolato}dimethano­l­copper(II)samarium(III)

In the title hetero-dinuclear complex, [CuSm(C₂₂H₂₄N₂O₄)Cl₃(CH₃OH)₂], the Cu^II cation is N,N′,O,O′-chelated by a 6,6′-dimeth­oxy-2,2′-[cyclo­hexane-1,2-diylbis(nitrilo­methanylyl­idene)]diphenolate ligand, and one Cl⁻ anion further coordinates to the Cu^II cation to complete the distorted square-pyramidal coordination geometry, while the Sm^III cation is chelated by four O atoms from the same ligand, and is further coordinated by two methanol mol­ecules and two Cl⁻ anions in an bicapped trigonal–prismatic geometry. Intra- and inter­molecular O—H...Cl hydrogen bonds are present in the structure.

A salen-type trinuclear Zn₂Gd complex

In the trinuclear title complex, di-μ-acetato-1:2κ²O:O′;2:3κ²O:O′-bis­{μ-6,6′-dimeth­oxy-2,2′-[cyclo­hexane-1,2-diylbis(methanylyl­idene)]diphenolato}-1:2κ⁶O¹,N,N′,O^1′:O⁶,O^6′;2:3κ⁶O⁶,O^6′:O¹,N,N′,O^1′-2-gadolinium(III)-1,3-dizinc hexa­fluor­idophosphate methanol monosolvate monohydrate, [GdZn₂(C₂₂H₂₄N₂O₄)₂(CH₃COO)₂]PF₆·CH₃OH·H₂O, the two Zn^II ions are located in the inner N₂O₂ cavities of two 6,6′-dimeth­oxy-2,2′-[cyclo­hexane-1,2-diylbis(methanylyl­idene)]diphenolate (L) ligands. Both Zn^II ions are five-coordinated by two O atoms and two N atoms from the L ligand and one O atom of an acetic acid mol­ecule, giving rise to a square-pyramidal geometry around the Zn^II ions. The Gd^III ion is nine-coordinated by four O atoms from the outer O₂O₂ sites of one ligand, and three O atoms from another ligand, in which there is one non-coordinating meth­oxy O atom. Two further O atom from different acetate ligands complete the nine-coordinate environment.