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Transition-metal quinoxaline complexes. Part III. Copper(II) derivatives with substituted quinoxalines
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1966
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Inorganic ChemistryChemical EngineeringOrganic Ligand BridgesEngineeringCoordination ComplexNitrate ComplexesOrganic ChemistryMolecular ComplexTransition-metal Quinoxaline ComplexesChemistryInorganic SynthesisMetal Chain CompoundType Cux2l2Inorganic Compound
Copper(II) halides form complexes of the type CuX2L2(L is 2,3-diphenyl- and 2-methyl-quinoxaline) and CuX2L (L is 2,3-dimethylquinoxaline) with substituted quinoxaline. The 2,3-diphenylquinoxaline complexes appear to be monomeric whereas the others are polymeric. The 2-methylquinoxaline complexes have halide bridges and the 2,3-dimethyquinoxaline complexes are square-planar with organic ligand bridges. These structures are deduced from reflectance and far-infrared spectra and an examination of molecular models. Some copper(II) nitrate complexes of these ligands are described.