A microwave-promoted new easy, efficient, clean and environmentally benign method for the synthesis of 1,7naphthyridineand its derivatives from 2-cyano-3-pyridylacetonitrile has been developed. The desired products were isolated in excellent yields and high purity under eco-friendly conditions.The synthesized compounds were characterized by the IR, UV-Visible and H NMR spectral analyses along w...

The complex of bis-(p-aminobnzoato)tetraquamanganese(II) was synthesized according to the literature method. The interaction between bis-(p-aminobnzoato)tetraquamanganese(II) and cat genomic DNA was studied by gel electrophoresis, fluorescence spectroscopy, UV-visible and viscosity methods. The results suggest that the complex binds with DNA by intercalating through the ligand. The intrinsic bi...

Herein, we report the synthesis of a molecular clip with TTF side-walls and its binding behavior towards electron-deficient guests, namely the formation of macrocycle/molecular-clip supramolecular complexes in solution. Four different sets of external stimuli--the K(+)/[2.2.2]cryptand, NH(4) (+)/Et(3)N and (p-BrPh)(3)NSbCl(6)/Zn pairs, and heating/cooling cycles-control the movement of this mol...

Three green compounds for color filter dyes based on bis(cyclopentadienyl) titanium complexes including dithiolate ligand were synthesized. Physical properties by the change of the substitution groups of the synthesized materials were systematically examined. UV-visible absorption spectrum of the synthesized materials showed maximum absorbing wavelengths of 427 to 430 nm and 632 to 635 nm in so...

Abstract UV/Vis absorption spectroelectrochemistry is a very promising analytical technique due to the complementary information that simultaneously obtained from electrochemistry and spectroscopy. In this work, used in parallel configuration study oxidation of folic acid alkaline medium. Herein, has been detect both products consumed at electrode/solution interface, allowing us develop an prot...

In this paper we discuss the design, implementation and performance of two neural network algorithms, one for ozone concentration profile, and the second for tropospheric ozone column retrieval from ESA-Envisat SCIAMACHY Level 1b data. The performances of the two algorithms were checked through tests against ozone sondes measurements. Both algorithms make use of visible radiation whose role has...

nanotechnology has been advanced since the last decades. among all nanomaterials that have been developed, nanosilver is the most frequently used nanoparticles. its release into natural water bodies is inevitable due to its broad applications. nanosilver (nag) was prepared via tollens method using. the morphology, size distribution and average size of the obtained nag was characterized using tr...

the adsorption characteristics of riboflavin onto silver-deposited iron oxide magnetic nanoparticles (ag/fe3o4) have been described. characterization of the synthesized ag/fe3o4 nanoparticles was achieved by ftir spectra, tem image and xrd pattern. the influence of several experimental parameters such as nanoparticles dosage, ph of the sample solution, different orientations of the riboflavin m...