Cyclodextrins (CDs) are a family of cyclic oligosaccharides which are composed of α (1,4) -linked glucopyranose subunits. Thebest-characterized forms are α, β and γ CD which are consisted of six, seven and eight D-glucose units, respectively. Cyclodextrins are produced from starch by enzymatic degradation. These macrocyclic carbohydrates with polar internal cavities can form complexes with and ...

This review addresses the search for activity enhancement of leishmanicidal organic compounds through their coordination chemistry with ruthenium. In an introduction to leishmaniasis, its clinical manifestations, geographical distribution, available forms treatment, and challenges disease management are presented. Ruthenium complexes, owing physico-chemical biological properties, introduced as ...

lanthanide(iii) chloro complexes of 4[n-(4’-hydroxy-3’-methoxybenzalidene) amino] antipyrine semicarbazone (hmbaaps) (i) and 4[n-(3’,4’,5’-trimethoxybenzalidene) amino] antipyrine semicarbazone (tmbaaps) (ii) with the general composition lncl3.2l (ln = la, pr, nd, sm, gd, tb, dy or ho; l = hmbaaps or tmbaaps) are reported. all the complexes were synthesized in ethanolic medium and refluxed the ...

Iron, cobalt and copper are metals, which appear together in many real samples, both natural and artificial. Recently a classical univariate micellar colorimetric method has been developed for determination of these metal ions. The organized molecular assemblies such as micelles are used in spectroscopic measurements due to their possible effects on the systems of interest. The ability of mi...

Achillea tenuifolia Lam. (Asteraceae) afforded a dichloromethane fraction from which three known compounds β-sitosterol (compound1), 5-hydroxy, 4',6,7– trimethoxy flavone (salvigenin compound 2), and methyl-gallate (compound 3) were isolated for the first time. The structure of isolated compounds was elucidated by different spectroscopic methods. Applying the molar-ratio method, the complexat...

The complex [(PhCH2NC)AuCl], 1, was prepared by the reaction of [(Me2S)AuCl], A, with an equimolar amount of benzyl isocyanide (PhCH2NC) ligand. Through a salt metathesis reaction, the chloride ligand in 1 was replaced by potassium benzothiazole-2-thiolate (Kbt) and potassium benzoimidazole-2-thiolate (Kbi) to a...

Hexacoordinate silicon pincer complexes offer promising charge transport and electroluminescent layers for high performance molecular electronic devices. Tuning the structure of ligands affords good control pincer's properties.

The current research describes the synthesis and characterization of 2-acetylpyridine N(4)-cyclohexyl-thiosemicarbazone ligand (HL) their two metal complexes, [Au(L)Cl][AuCl2] (1) [Pd(L)Cl]·DMF (2). molecular structures compounds were determined by physicochemical spectroscopic methods. Single crystal X-ray diffraction was employed in structural elucidation new complexes. complexes showed a squ...

Di- or tetracarboxylic acid ligands were used to isolate molecular coordination complexes containing the association of several mononuclear {Nb 1 } moiety and dinuclear 2 O} niobium( v ) polyoxo clusters.