Copper(II) coordination compounds with 2-(7-bromo-2-oxo-5-phenyl-3H-1,4-benzdiazepin-1-yl)acetohydrazide and products of its condensation with pyruvic acid

Some methods for the synthesis of copper(II) complexes with 2-(7-bromo-2-oxo-5-phenyl-3H-1,4-benzodiazepin-1-yl)acetohydrazide (Hydr) ([Cu(Hydr)(H₂O)Cl₂]) and products of its condensation with pyruvic acid ([Cu(HydrHPv)(H₂O)Cl₂] and, with alkalization to pH 8, [Cu(HydrPv)₂]) were developed, and the complexes themselves were synthesized. The complexes were characterized by electrical conductivity, magnetic susceptibility, and IR and EPR spectroscopy measurements.