Cobalt(II) complexes of 2,3,5,6-Tetrakis(2-pyridyl)pyrazine and 2,4,6-Tris-(2-pyridyl)-1,3,5-triazine

Abstract
Bis-ligand cobalt(II) complexes of 2,4,6-tris(2-pyridyl)-1,3,5-triazine and 2,3,5,6.tetrakis(2-pyridyl)pyrazine have been prepared. The conductivities of the complexes in nitromethane solution correspond to values expected for bi-unielectrolytes. The temperature dependence of their magnetism has shown that in some instances there exists a spin-state equilibrium in the metal atom while in others the metal atom is spin-free and Curie-Weiss laws are obeyed.

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