Introduction: The chemistry of metal complexes derived from heterocyclic compounds has attracted considerable interest due to the broad range of pharmacological activities of such compounds. The important pathogens such as Escherichia coli, and Staphylococcus aureus are wildly caused many diseases. So antibacterial activity of Zn (Ⅱ), Ni (Ⅱ), Co (Ⅱ) and Cu (Ⅱ) chromone complexes against two kin...

here, we report the synthesis of a schiff-base mixed-ligand complex of cadmium(іі) in bulk and nano-scales via the precipitation and sonochemical methods, respectively. the complex formula is [cd(3-bpdh)(3-bpdb)cl2]n (1), where the ligands are 3-bpdh = 2,5-bis(3-pyridyl)-3,4-diaza-2,4-hexadiene and 3-bpdb = 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene. the structure of mixed-ligand complex (1) wa...

Density functional calculations were used to explore the complexation of 3-alkyl-4-phenylacetylamino-4,5-dihydro-1h-1,2,4-triazol-5-one (ADPHT) derivatives by first-row transition metal cations. Neutral ADPHT ligand and mono deprotonated ligands have been used. Geometry optimizations have been performed in gas-phase and solution-phase (water, benzene, and N,N-dimethylformamide (DMF)) with B3LYP...

Synthesis of mixed ligand Lanthanum(III) complexes of the type [M(Q)(L)∙2H2O] have been carried out by using 8-hydroxy quinoline (HQ) as a primary ligand and Nand/or Odonor amino acids (HL) such as L-proline, L-valine and L-serine as secondary ligands. The characterization of metal complexes has been done on the basis of elemental analysis, electrical conductance, room temperature magnetic susc...

a series of new heteroleptic chelated copper(ii) complexes that encompass n,n-dibezyl substituted derivative of ethylenediamine (x-diamine) and acetylacetonate (acac) were prepared.  the ir and electronic absorption spectra and the molar conductivity of the complexes are presented and discussed.  the molar conductivity values of the complexes in different solvents reveals a predominance of elec...

Mixed ligand complexes of indium (111) have been synthesized by the reaction of InCl3.6H2O with semicarbazone (SCH) and benzaldazine (BA) ligands in neutral and basic medium. Complexes of the type [In2 (BA)2 (LH)4]Cl6 and [In2 (BA)2 (L)4]Cl2 (where BA = benzaldazine, LH = semicarbazone ligands (SCH) and L = deprotonated semicarbazone ligands (SC)) have been proposed in neutral and basic medium,...

Complexation behaviour of mixed complexes of mefloquine hydrochloride and chloroquine phosphate (first-line antimalarial drugs) with Cobalt(II), Nickel(II) and Iron(III) were studied; the complexes were prepared using template methods, and chelates of 1:1:1 stoichiometries were formed. The nature of the bonding of the mixed ligands (mefloquine and chloroquine) and structure of the isolated meta...

A ditopic benzobis(carbene) ligand precursor was prepared that contained a chelating pyridyl moiety to ensure co-planarity of the carbene ligand and the coordination plane of a bound octahedral metal center. Bimetallic ruthenium complexes comprising this ditopic ligand [L4Ru-C,N-bbi-C,N-RuL4] were obtained by a transmetalation methodology (C,N-bbi-C,N=benzobis(N-pyridyl-N'-methyl-imidazolyliden...

Six new mononuclear [FeIII(LBr,Cl)X]-complexes (LBr,Cl is the dianionic penta-N3O2-dentate Schiff base ligand N,N?-bis(2’-hydroxy-3-bromo-5-chlorobenzylidene)-1,6-diamino-3-azahexane; X: Cl?, N3?, NCO?, NCS?, NCSe?, CN?) were synthesized and their structures, magnetic electrochemical properties studied. Structure analysis measurements showed that [FeIII(LBr,Cl)CN] in low spin state other five c...