Abstract
New double-ring octa-aza macrocyclic complexes, synthesized by condensation of oxamide-N,N-diethanoic acid with diethylenetriamine in 1:2 ratio in the presence of CuII, NiII or CoII, have been characterized by elemental analyses, i.r., u.v., magnetic susceptibility and conductivity measurements. The complexes are non-electrolytes, in which each metal ion is in a spin-free state in a pseudo- octahedral geometry. The high magnetic moments are attributed to a ferromagnetic effect.
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Aqra, F.M.A.M. New macrocyclic complexes containing amide, imine and secondary amine functions. Transition Metal Chemistry 24, 337–339 (1999). https://doi.org/10.1023/A:1006962812246
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DOI: https://doi.org/10.1023/A:1006962812246