Chromatographic determination of metal ions after complexation with bis(quaternary ammonium hydrazones) of 2,6-diacetylpyridine

Transition metal complexes with Girard reagent-based ligands. Part V. Synthesis, characterization and crystal structure of pentagonal-bipyramidal manganese(II) complex with 2,6-diacetylpyridine bis(Girard-T hydrazone)

“…A number of manganese(II) complexes have been synthesized in which bis (hydrazone) chelating agents may possess various sets of donor atoms, including the N 3 O 2 set [33][34][35][36][37], involved also in the title ligand. In [38], the ligands, 2,6-diacetylpyridine bis(Girard-T/P hydrazone) dichloride were obtained in the form of anhydrous salts, although they were recrystallized from water-ethanol systems. However, no physicochemical characterization of the given hydrazone Girard-T ligand and neither the elemental analysis data were given in the paper.…”

“…However, no physicochemical characterization of the given hydrazone Girard-T ligand and neither the elemental analysis data were given in the paper. The authors only showed that the listed ligands were suitable for chromatographic determination of Ti(IV), U(VI), Fe(III) and V(V) [38]. In the present paper we describe a simpler method for the synthesis of 2,6-diacetylpyridine bis (Girard- The ligand and the complex were characterized by elemental analysis, conductometric [41] and magnetochemical [42] measurements, and by IR spectra [43].…”

Characterization and quantification of metallothionein isoforms by capillary electrophoresis–inductively coupled plasma–isotope-dilution mass spectrometry

“…The chelating agent 2,6-diacetylpyridine-bis(N-methylenepyridiniohydrazone)dichloride was prepared according to a procedure described elsewhere [28]. Thiocarbamide (p.A.)…”

Synthesis, characterization, DFT calculations and antimicrobial activity of pentagonal-bipyramidal Zn(II) and Cd(II) complexes with 2,6-diacetylpyridine-bis(trimethylammoniumacetohydrazone)

“…Reaction of Girard's reagents with different mono-and dicarbonyl compounds allowed synthesis of water soluble hydrazones, which form stable complexes with metal ions [29]. Main and Fritz synthesized 2,6-diacetylpyridine-bis(trimethylammoniumacetohydrazone) in the reaction of 2,6-diacetylpyridine and trimethylammoniumacetohydrazide (Girard's T reagent) and used it as an analytical reagent for chromatographic separation and quantitative determination of metal ions [30]. However, the authors did not provide elemental analysis and physicochemical characterization of this compound.…”