μ-4,4′-Di-4-pyridyl­diazene-κ²N:N′-bis{[1,1,1-tris­(di­phenyl­phosphino­methyl)­ethane-κP³]copper(I)} bis­(tetra­fluoro­borate) di­chloro­methane solvate

The title complex, [Cu₂(C₁₀H₄N₄)(C₄₁H₃₉P₃)₂](BF₄)₂·CH₂Cl₂, was synthesized and characterized. Two copper(I) ions are bridged by 4,4′-di-4-pyridyl­diazene (more commonly as 4,4′-azobi­pyridine). The discrete dinuclear cation contains two distorted tetrahedral copper(I) centers. Each Cu^I atom is coordinated by one 1,1,1-tris­(di­phenyl­phosphino­methyl)­ethane mol­ecule and one 4,4′-azobi­pyridine ligand. The complex sits on a center of symmetry; the solvent molecule is disordered across another center of symmetry. On irradiation of the copper(I) complex in di­chloro­methane at 365 nm, the trans/cis ratio of the complex is reversed.

4-[(4-Hydroxybenzylidene)amino]-1,5-dimethyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one methanol solvate

The title compound, C₁₈H₁₇N₃O₂·CH₄O, is a Schiff base compound, which is derived from the condensation of equimolar amounts of 4-amino­antipyrine and 4-hydroxy­benzaldehyde. In the crystal structure, the MeOH molecules are linked to the Schiff base molecules through intermolecular O—H...O hydrogen bonds.

1,5-Di­methyl-2-phenyl-4-[(E,E)-3-phenyl­prop-2-enyl­idene­amino]-1H-pyrazol-3(2H)-one

The title compound, C₂₀H₁₉N₃O, is a Schiff base compound derived from 4-amino­antipyrine and cinnam­aldehyde. As expected, the molecular structure adopts a trans configuration about the central C=N double bond.

4-Chloro-2-(1-naphthyl­imino­methyl)­phenol

The title compound, C₁₇H₁₂ClNO, is a Schiff base compound derived from the condensation of equimolar quantities of 5-chloro­salicyl­aldehyde and 1-naphthyl­amine. The structure displays a trans configuration with respect to the imine C=N double bond. The N atom is also involved in an intramolecular O—H...N hydrogen bond. In the crystal structure, the mol­ecules stack along the b axis.

Bis[4-chloro-2-(cyclo­hexyl­imino­meth­yl)phenolato]zinc(II)

In the mononuclear title compound, [Zn(C₁₃H₁₅ClNO)₂], the Zn^II atom is four-coordinated by two N atoms and two O atoms from two Schiff base ligands in a slightly distorted tetra­hedral geometry.

Bis[4-chloro-2-(cyclo­hexyl­imino­meth­yl)phenolato]cobalt(II)

In the mononuclear title compound, [Co(C₁₃H₁₅ClNO)₂], the Co atom is four-coordinated by two N atoms and two O atoms from two Schiff base ligands in a slightly distorted tetra­hedral geometry.