Design and synthesis of coordination compounds with tetradentate ligands derived from alkylated thiosemicarbazide
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COCU, Maria; GRĂDINARU, Julieta; REVENCO, Mihail; RYBAK-AKIMOVA, E; GĂRBĂLĂU, Nicolae. Design and synthesis of coordination compounds with tetradentate ligands derived from alkylated thiosemicarbazide . In: Chemistry Journal of Moldova. 2008, nr. 2(3), pp. 38-46. ISSN 1857-1727.
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Chemistry Journal of Moldova
Numărul 2(3) / 2008 / ISSN 1857-1727 /ISSNe 2345-1688

Design and synthesis of coordination compounds with tetradentate ligands derived from alkylated thiosemicarbazide

Pag. 38-46

Cocu Maria1, Grădinaru Julieta1, Revenco Mihail2, Rybak-Akimova E, Gărbălău Nicolae1
 
1 Institutul de Chimie al AŞM,
2 Universitatea de Stat din Moldova
 
Disponibil în IBN: 13 decembrie 2013


Rezumat

This work is devoted to the investigation of the template reactions of organic compounds derived from S-alkylisothiosemicarbazide and β-dicarbonylic compounds (acetyl(benzoyl)acetone, 2,6-diformylpyridine, 2,6-diformyl-4-methylphenol, 1-hydroxy-2-naphthaldehyde, sodium nitromalonic dialdehyde, 1,1,3,3-tetraetoxypropane, 3-ethoxyacroleine) in the presence of 3d-metal ions, determination of the structure and properties of the prepared complexes. There were elaborated original methods for synthesis of open-chain or macrocyclic coordination compounds of nickel(II), copper(II),oxovanadium(IV) and cobalt(II) with N4, N3O and N2O2 tetradentate ligands. Two types of hexaazamacrocyclic systems with trans- and cis- arrangement of thiosemicarbazide fragments have been obtained using template condensation of different precursors. The biostimulative properties (biomass accumulation and increasing of enzymatic activity) of complexes have been established. Some complexes of nickel(II) have been studied as coloring agents for plastics.

Cuvinte-cheie
Template synthesis; coordination compounds; 3d-metal complexes; Schiff base; S-alkylisothiosemicarbazide