A new D-A derivative with a 1,3-dithiol-2-ylidene unit: Structural, spectroscopic and theoretical studies

Reaction of copper(II) chloride or bromide with 2-chloro-3-bromopyridine (2 or 2,3-dichloropyridine generates a family of compounds of the general formula L2CuX2 (1-4). X-Ray crystallography shows that the bromide complexes (3-bromo-2-chloropyridine)dibromidocopper(II) (1) and (2,3dichloropyridine)dibromidocopper(II) (3) are particularly unusual in that they crystallize with both the syn-and anti-conformation structures in the same crystal. A review of the literature on complexes of the formula (substituted-pyridine)2CuX2 suggests that these are the first examples of such complexes.The members of the family show a variety of magnetic behaviors and variable temperature magnetic susceptibility data indicate that 1 is essentially paramagnetic (θ = -0.9(1) K) while 3 is weakly ferromagnetic (J = 2.9(1) K). Compound 2 [(3-bromo-2-chloropyridine)dichloridocopper(II)] is well fit by the uniform one-dimensional antiferromagnetic model (J = -19.6(1) K), while compound 4 [(2,3-dichloropyridine)dichloridocopper(II) exhibits weak anti-ferromagnetic interactions (J = -3.68(3) K).

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A new D-A derivative with a 1,3-dithiol-2-ylidene unit: Structural, spectroscopic and theoretical studies

Cited by 3 publications

References 33 publications

Five-Membered Ring Systems

Five-Membered Ring Systems

Influence of metal to ligand molar ratios on the supramolecular structure formation of Cu(II) with diaminopropane and iodide: Synthesis, structure, spectroscopic and DFT studies

Pyridine-based complexes of copper(II) chloride and bromide: ligand conformation effects on crystal structure. Synthesis, structure and magnetic behavior of Cu(2-Cl-3-X′py)₂X₂[X, X′ = Cl, Br]

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A new D-A derivative with a 1,3-dithiol-2-ylidene unit: Structural, spectroscopic and theoretical studies

Cited by 3 publications

References 33 publications

Five-Membered Ring Systems

Five-Membered Ring Systems

Influence of metal to ligand molar ratios on the supramolecular structure formation of Cu(II) with diaminopropane and iodide: Synthesis, structure, spectroscopic and DFT studies

Pyridine-based complexes of copper(II) chloride and bromide: ligand conformation effects on crystal structure. Synthesis, structure and magnetic behavior of Cu(2-Cl-3-X′py)2X2[X, X′ = Cl, Br]

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Pyridine-based complexes of copper(II) chloride and bromide: ligand conformation effects on crystal structure. Synthesis, structure and magnetic behavior of Cu(2-Cl-3-X′py)₂X₂[X, X′ = Cl, Br]