Variations in the structural composition of pyrazole-3,5-dicarboxylato Cu(ii) complexes with 1,2-di(4-pyridyl)ethane synthesized under different conditions

Abstract

The reaction of Cu(II) and pyrazole-3,5-dicarboxylic acid (H3pzdc) and 1,2-di(4-pyridyl)ethane (bpa) under various temperatures and solvents results in the formation of new seven Cu(II) complexes, namely, [Cu2(pzdc)2(H2O)2](H2bpa)(H2O)6 (1), [Cu2(pzdc)2(H2O)2](H2bpa)(H2O)4 (2),...