Tag Archives: Benzoin

Preparation, Characterization and Study the Biological Activity of New No2, Novel N2o2 Ligands and Their Complexes with [Co (Ii), Cu (Ii), Ni (Ii), Mn (Ii) and Hg (Ii)] Ions (Published)

A new two Schiff bases derivatives was synthesized and characterized with studying their biological activity and employed anganese (II),Cobalt (II),Nickel(II),Copper(II) and Mercury (II) complexes: 2 – ((Z) – 4 – ((Z)-2-hydroxy-1, 2-diphenylethylideneamino)-1, 5 – dimethyl – 2-phenyl-1H-pyrazol-3(2H)-ylideneamino) benzoicacid and (E)-4-(2-hydroxy-1, 2-diphenylethylideneamino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one. The first ligand were obtained through a reaction of Benzoin and 4-Aminoantipyrine while the second result from the condensation of the first ligand with 2-amino benzoic acid. Ten new coordination compounds were synthesized and structurally characterized: [Co(L1)(Cl)], [Cu(L1)(Cl)] [Ni(L1)(Cl)],[Mn(L1)(Cl)],[Hg(L1)(Cl)],[Co(L2)],[Ni(L2)],[Cu(L2)], [Mn(L2)] and [Hg (L2)]. All of the suggested chemical structures of the prepared ligands and metal complexes are confirmed by using FT- IR, UV, 1H& 13C-NMR spectra. Most of the prepared compounds show antibacterial activity to (Staphylococcus aureus), (Escherichia coli), (Bacillus subtilis) and (Pseudomonas aeroginosa).

Keywords: 2-Aminobenzoicacid, 4-Amino Antipyrine, Benzoin, Biological Activity, Characterization, Schiff Bases

Preparation and Characterization of Some New Complexes of Schiff Bases Derived From Benzoin and Glycine (Published)

A new series of complexes containing benzoin and glycine compounds were prepared as ligands, ligand was prepared by the reacting between benzoin and glycine to give the corresponding Schiff base compound ((E)-2-((2-hydroxy-1,2-diphenylethylidene) amino) propanoic acid). The complexes M(HDPENP)2 – of Cu(II), Ni(II), Co(II), Zn(II) and Fe(II) contaning Schiff base compound has been synthesized by the reacting between copper bromide, hydrate nickel chloride, hydrate cobalt chloride, zinc chloride, and iron bromide and Schiff base in 1:2 mole ratio. It has been isolated in the solid state and characterized by (C.H.N) data, IR and 1H NMR spectroscopy. Six coordinate and octahedral complexes were producted and the results are reported and discussed below

Keywords: Benzoin, Complexes, Glycine, Metal Complexes, Schiff Base