In this study, synthesis of insoluble polymeric ligand (L) and its transition metal complexes [Cu(L)Cl2]·2H2O (1), [Co(L)Cl2(H2O)2] (2) and [Ni(L)Cl2(H2O)2] (3), having the azomethine groups, were synthesized by the condensation reactions of the diamines and dialdehydes. The structural properties were characterized by the analytical and spectroscopic methods using by elemental analysis, Fourier...

The production of nicotinic acid and nicotinamide can be intensified by enzymatic conversion of 3-cyanopyridine. This fermentation process requires an economic and efficient separation method to compete with the synthetic process. In the present study, equilibrium data for the extraction of nicotinic acid using TOA dissolved in different diluents such as toluene and butyl acetate and n-dodecane...

The title complex, systematic name hexa-kis-(μ2-4-tert-but-oxy-4-oxobut-2-en-2-olato)-1:2κ(9) O (2),O (4):O (2);2:3κ(9) O (2),O (4):O (2)-trizinc, [Zn3(C8H13O3)6], syn-the-sized from tert-butyl aceto-acetate and di-ethyl-zinc, consists of trinuclear centrosymmetric mol-ecules of an approximate C 3i symmetry. The three metal cations are arranged in a linear fashion, with the central Zn(II) atom ...

The purpose of this study was purification and characterization of phenol monooxygenase from Stenotrophomonas maltophilia strain KB2, enzyme that catabolises phenol and its derivatives through the initial hydroxylation to catechols. The enzyme requires NADH and FAD as a cofactors for activity, catalyses hydroxylation of a wide range of monocyclic phenols, aromatic acids and dihydroxylated deri...

We have investigated third order nonlinear optical properties and spectral characteristics of methylene blue dye in both polymer and liquid mixtures. The spectral characteristics of the dye is studied by recording the absorption and fluorescence spectra of the dye doped in poly(methylmethacrylate) modified with additive n-butyl acetate(nBA) and the dye in MMA and nBA (liquid mixture). The spect...

The herbal market is flooded with substitutes and adulterants due to non-availability of the genuine drug and poor knowledge and difficulty in identifying the pure active principle. Toddalia asiatica (Rutaceae) is a constituent of traditional systems of medicine used for treating a paradigm of diseases. The flowers were extracted with methanol, the filtered extract was concentrated to dryness a...

Studies of density and speed sound are commonly used tools to ascertain the properties pure liquids nature interactions between component molecules a binary mixture. Herein, (ρ) (u) methyl acetate (MAc), ethyl (EAc), n-propyl (n-PAc) n-butyl (n-BAc) their mixture with 1,2-diaminopropane (1,2-DAP) were measured over entire composition range at atmospheric pressure 0.1 MPa in temperature 298.15–3...