Journal of the Chemical Society A Inorganic Physical Theoretical · 1969 · 22 citations · 0 references
Natural SciencesChemistryCrystal StructureInorganic ChemistrySpectroscopyCoordination ChemistryMagnetism Of Inorganic CompoundsMetal-ligand BondingTransition Metal ChemistryTransition Metal ComplexesMagnetic Properties Of Transition Metal ComplexesMagnetism Of Transition Metal ComplexesQuinoxaline ChemistrySpectroscopy Of Transition Metal ComplexesTetrahedral ComplexesTetrahedral Coordination
The cobalt(II), nickel(II), and copper(II) halide complexes of 2,3-di-(2-pyridyl)quinoxaline are described, and the structures interpreted on the basis of magnetic and spectral data. For cobalt, the tetrahedral complexes CoX2(DPYQ) where X = Cl and Br, and CoX2(DPYQ)2 where X = Br and I, were isolated. For copper both the chloro- and bromo-complexes have stoicheiometry CuX2(DPYQ), though with different structures. The nickel complexes follow a less well ordered pattern, though both the complexes isolated pure, Ni2Cl4(DPYQ)(H2O)2 and NiBr2(DPYQ), are believed to be octahedral.