The effects of vacuum ultraviolet radiation on the adsorbed copper center molecule bis(4-cyano-2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) (or Cu(CNdpm)2), (C24H36N2O4Cu, Cu(II)) was studied by photoemission spectroscopy. Changes in the ultraviolet photoemission spectra (UPS) of Cu(CNdpm)2...

The metal-organic chemical vapor deposition (MOCVD) technique is a promising process for high temperature superconductor YBa2Cu3O7-d (YBCO) preparation. In this technique, the purity, evaporation characteristics and thermostability of adopted precursors will decide the quality and reproducible r...

In this study, we demonstrate the use of a series of boronic acid functionalized self-assembled monolayers (SAMs) to improve photovoltaic device performance P3HT and PCBM based solar cells. The SAMs treated compact TiO2 (c-TiO2) layer was utilized as an electron transport layer for inverted poly...

A quadratic force field has been calculated for the molecule 1,3,5-benzenetricarbonitrile (trimesonitrile), starting with a semiempirical MINDO/3 force

Commercial pear production has become increasingly difficult over the last decade, with low fruit set being one of the main factors leading to poor yield of pear orchards. The use of gibberellins to increase fruit set has been widely reported, but in most of the cases these applications are made...

This article describes the synthesis, characterization and DNA-binding assays of a series of oxadiazoles derived from (E)-3-ferrocenylacrylic acid. The compounds were obtained in satisfactory yields and characterized by NMR and high resolution mass spectrometry analysis. Additionally, the X-Ray ...

A novel synthesis of 1,2,4-oxadiazoles and isoxazoles is described by utilizing the reactions between amidoximes and α,β-alkynic aldehydes and/or ketones. Conjugate addition products, obtained from amidoximes and α,β-alkynic aldehydes and/or ketones, afford 1,2,4-oxadiazoles and isoxazoles w...

A series of novel naproxen analogues containing 3-aryl-1,2,4-oxadiazoles moiety (4b-g) and their reaction intermediates aryl carboximidamides moiety (3b-g) was synthesized and evaluated in vitro as dual COXs/15-LOX inhibitors. Compounds 3b-g exhibited superior inhibitory activity than celecoxib ...

The first one-pot room-temperature protocol for the synthesis of 3,5-disubstituted-1,2,4-oxadiazoles via the condensation between amidoximes and carboxylic acid esters in superbase medium MOH/DMSO is reported. A broad spectrum of alkyl, aryl and hetaryl amidoximes and esters was examined. This r...

Sodium hypochlorite (NaOCl) and peracetic acid (PAA) are being used for sanitization in food processing, but their chemical behaviors regarding disinfection byproducts (DBPs) formation during washing processes are still largely unknown. This study compared these two sanitizers in simulated washi...

Four new N-Fmoc α-amino acids carrying a nucleobase in the side chain were prepared starting from l-glutamic acid. N-Boc-glutamic acid α benzyl ester underwent a radical decarboxylation in the presence of CBrCl3 to give the corresponding 2-amino-4-bromobutanoic acid derivative. The four nucleo...

The synthesis of a series of novel α-amino acids based on the nucleophilic substitution of protected 2-amino-4-bromobutanoic acid (1) is described. Basic, acidic or neutral amino acids can be obtained; chimerical amino acids carrying a coenzyme type structure in the side chain, multifunctional ...

Both [2.2.2]propellane and the Cope rearrangement follow reaction paths that pass through singlet diradicaloid portions of the potential energy surface. Here we report the results of applying a variety of methods — CASSCF, PUHF, MUMP2, DFT, UDFT, and CI — that have been suggested as methods fo...

Stannylation of 1-bromo- and 1-chloro-4-iodobicyclo[2.2.2]octane with (trimethyltin) lithium indicate an abnormal leaving group mobility (Br>I>Cl).

A hydrometallurgical method has been developed which facilitates selective extraction of copper from a copper-concentrate ore that contains a significant composition of iron. Over 98% copper extraction has been hydrometallurgically extracted from an ore that contains 24.19% Cu, 29.22% Fe, and 0....

The extraction of zinc from a sphalerite concentrate using sodium chlorate as an oxidant in hydrochloric acid solutions was examined. It was determined that stirring speed did not significantly affect zinc extraction compared with other experimental parameters. The dissolution rate increased wit...

Ca-α-SiAlON:Eu2+ oxynitride phosphors are typical luminescent materials with high thermal tolerances. A series of zinc borate glass samples (xZnO-(100-x)B2O3; mol%) were prepared for investigating their ability to disperse Ca-α-SiAlON:Eu2+ phosphor powders. Phosphor in glass (PiG) was prepared...

The surface of self-made MoS2 nanosheets with five-layer structure was successively decorated by zinc borate (ZB) nanoparticles with coordination enhancement on the tribological performance and modified by three types of modifiers for improving dispersivity in oil. A series of characterizations ...

Due to existing the synergistic effect, the novel zinc borate/MoS2 nanocomposites (ZB/MoS2) were successfully fabricated by a liquid phase-based sonication. Subsequently, they were employed as additive to investigate tribological properties in grease. The structure, composition and morphology of...

Several formulations of wood-plastic composites and a particleboard were fabricated with combining zinc borate biocide at different retention levels during the manufacturing process. The treated specimens were exposed to a field test under protected above ground conditions for 7 years in souther...