Showing papers by "Mariana Mitewa published in 1981"

TL;DR: In this paper, the Cu(II) complexes of three hydrazides of aspartic and glutamic acids have been obtained and studied using electronic IR and EPR spectra, DTA, magnetic susceptibility measurements, extraction, ion exchange and elemental analysis data.

TL;DR: In this paper, the EPR method was used to study the structure and composition of Cr(V) complexes in nonaqueous solutions in the presence of oxalic acid and/or organic solvent.