new diorganotin(iv) complexes of the type ph2snl2, bu2snl2 and me2snl2 of the ligands 2-thioacetic-5-phenyl-1,3,4-oxadiazole (hl1) and benzamidophenylalanine (hl2). have been synthesized and characterized by physico-chemical techniques such as (elemental analysis, and electrolytic conductance) and spectral uv-visible, ir and 1h, 13c and 119sn nmr). monomer structures for the complexes, bidentat...

A series of oxovanadium(V) complexes containing amine pyridine(s) phenolate ligands [ONN] (2a-f) have been synthesized in high yields (68-83%) by reacting VO(O(n)Pr)3 with 1.0 equiv. of the ligands in CH2Cl2. These complexes were characterized by (1)H, (13)C and (51)V NMR spectroscopy and elemental analysis. X-ray structural analysis for 2a, 2c and 2d revealed that these complexes adopt a six-c...

The VO(IV) complexes of tridentate ONO Schiff base ligands derived from 2- aminobenzoicacid and salicylaldehyde derivatives were synthesized and characterized by IR, UV–Vis and elemental analysis. Electrochemical properties of the vanadyl complexes were investigated by cyclic voltammetry. A good linear correlation was observed between the oxidation potentials and the electron-withdrawing charac...

A nickel(II) com plex with (bbim ae) ( — 2-[bis(benzimidazol-2-ylmethyl)amino]ethanol), [Ni(bbim ae)(NCS)2] • FLO (1) and an oxovanadium (IV) complex, [VO (bbim ae)(NCS)2] -dma (dma = N,N-dim ethylacetam ide) (2) have been prepared and their crystal structures determined by X-ray diffraction. Crystal data for 1 at 293 K: a = 13.334(2), b — 17.048(2), c = 10.3829(9) Ä , space group P 2 ,2 ,21, Z...

A large number of studies has been published proposing a range of vanadium containing compounds as potential new anti-diabetic drugs due to the observed insulin mimetic function of V(IV) complexes. Vanadium uptake and distribution within the body have been investigated in animal models by determination of total vanadium concentrations. Phase I and phase IIa human clinical trials have been compl...