Abstract
The complexes {[Cu(L)(μ1,5-dca)](ClO4)}n (1, L=bepza; 2, L=bedmpza) and [Cu(L)(μ1,5-dca)(dca)]n (3, L=bepza; 4, L=bedmpza), where dca=dicyanamide anion, bepza=bis[2-(1-pyrazolyl)ethyl)]amine and bedmpza=bis[2-(di-2,5-dimethyl-1-pyrazolyl)ethyl)]amine, were synthesized and characterized by spectroscopic techniques. The crystal structures of complexes 1 and 3 confirmed their polymeric 1D chain nature through the two terminal nitrile groups of the μ1,5-bridging dicyanamido ligand. The magnetic susceptibility measurements of the two complexes 1 and 3 revealed the occurrence of very weak antiferromagnetic coupling with J values of −0.17 and −0.03cm−1, respectively.
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