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.

Chloro­[2-(2,2'-bipyridyl-6-yl)-5-methyl­phenyl]­platinum(II)

The title compound, [Pt(C₁₇H₁₃N₂)Cl], has a distorted square-planar coordination geometry at the platinum(II) center due to the constraints of the tridentate 6-phenyl-2,2'-bi­pyridine. No metal-metal interaction was found in the crystal structure.