The synthesis and characterization of a series of mixed l,l-/l,2-dithiolene complexes, M[S2C2(CN)2] [SüCNR*]* with z = — 1, M = Ni, Cu, Pd, Pt and with 2 = 0, M = Ni, Cu, Au, M [S2C2(CN)2] [S2C NC N]2' , M = Ni, Pd, and N i[S2C2(CN)2] [S2COC2H5] are reported. Voltammetric studies in dichloromethane revealed that the mixed complexes could be oxidized in a one electron step, the half-wavepotentia...

In the present paper [VO(acac)2] reacts with an equimolar amount of tridentate dibasic ONO donor hydrazone ligand derived from the condensation of benzoyl hydrazine with either 2hydroxyacetophenone (H2L 1) or its para-substituted derivatives (H2L 2) (general abbreviation H2L), in the presence of excess amount of salicylaldehyde (Hsal) in methanol under aerobic conditions producing the mixed-lig...

We describe the synthesis and characterization of two new zinc (II) and cadmium (II) complexes of the tetradentate dissymmetric Schiff base ligand 2-((E)-(2-(2-(pyridine-2-yl)ethylthio)ethylimino)methyl)-4-bromophenol (PytBrsalH), prepared from 1-(2-pyridyl)-3-thia-5-aminopentane (pyta) and 5-bromosalicylaldehyde. The complexes were synthesized by treating an ethanolic solution of the ligand wi...

The reduction and subsequent reactions of the series of mixed ligand cobalt() complex cations, [Co(bipy)3] 3 , [Co(phen)3] 3 , [Co(en)3] 3 , [Co(en)2(bipy)] 3 , [Co(en)2(phen)] 3 , [Co(en)2(5-NO2-phen)] 3 , [Co(en)2(DPPZ)] 3 , [Co(bipy)2(NH3)2] 3 , [Co(bipy)(NH3)4] 3 , [Co(phen)2(NH3)2](ClO4)3] 3 and [Co(phen)(NH3)4] 3 , (where bipy is 2,2 -bipyridine, phen is 1,10-phenanthroline, en is ethy...

In this work, two ligands: 4-(trans-2-Methyl-2-butenoic acid)-2,2'-bipyridine) (L(1)) and 5-(trans-2-methyl-2-butenoic acid)-1,10-phenanthroline (L(2)), with the corresponding mixed-ligand heteroleptic Ru(II) complex were synthesized and characterized by FT-IR, 1H-, 13C-NMR spectroscopy and elemental analysis. The influence of the mixed functionalized polypyridyl ruthenium(II) complex on the ph...

The mixed ligand complexes of the type [ML1L2]Cl2. Where M=Cr(III), Mn(II), Co(II), Ni(II) and Cu(II) and L1=Pyruvic acid semicarbazone L2= Benzaldehyde semicarbazone have been synthesized, by the reactions of metal chlorides with two different semicarbazones in 1:1:1 molar ratios. The resulting products have been characterized on the basis of elemental analysis, magnetic measurement, IR and El...

Chelation enables metals to be transported to or from vulnerable target sites, and to hinder or facilitate their carcinogenic potential. In the reverse sense, metals are capable of ligand scavenging via complexation or mixed complex formation--the latter being the result of interaction with binary complexes. Consequently, metal complexes can be utilized for the transport of selected organic che...