University of Rijeka. Department of Biotechnology.
Abstract
Reakcijom para-nitrofenilhidrazina s para metoksiacetofenonom, odnosno s para nitrobenzaldehidom u razrijeđenoj octenoj kiselini, u molarnom omjeru 1 : 1, priređeni su novi derivati hidrazina, C13H10N4O4 i C15H15N3O3. Reakcijom kondenzacije para nitrobenzaldehida i para nitroanilina u alkoholnom mediju u molarnom omjeru 1 : 1 pripravljena je Schiffova baza, C13H9N3O4. Struktura pripravljenih spojeva okarakterizirana je 1D i 2D tehnikama spektroskopije NMR u DMSO-d6. Metodom kontinuirane varijacije istražen je stehiometrijski omjer vezanja cinkova(II) i niklova(II) nitrata heksahidrata sa sintetiziranim ligandima u otopini DMSO-d6. Priprava istih kompleksa provedena je i mehanokemijskom reakcijom bez otapala, u omjeru metal : ligand = 1 : 1. Kompleksi su okarakterizirani 1H NMR spektroskopijom.Novel hydrazine derivatives, C13H10N4O4 and C15H15N3O3, were synthesized by diluting acetic acid and para-nitrophenylhydrazine with para methoxyacetophenone and para nitrobenzaldehyde with a molar ratio of 1:1. The Schiff base, C13H9N3O4, was synthesized by the condensation of para nitrobenzaldehyde with para nitroaniline in alcohol medium in a molar ratio of 1:1. The molecules were characterized by one- and twodimensional NMR spectroscopy. Using the continuous variation method (Job plot) the stoichiometric binding ratio of zinc(II) and nickel(II) nitrate hexahydrate with the synthesized ligands were investigated in DMSO-d6 solutions. The synthesis of the same complexes was also carried out by mechanochemical reaction without solvent, in a molar ratio metal : ligand = 1:1. The synthesized compounds were characterized by 1H NMR spectroscopy
