Spectroscopic and structural investigations of 4 – [(2, 6 – dichlorophenyl) amino] 2 –methylidene 4 – oxobutanoic acid (6DAMB) and 4-[(2, 5– dichlorophenyl) amino] 2 – methylidene 4 – oxobutanoic acid (5DAMB) are presented by using experimental (FT-IR and FT-Raman) spectra and theoretical...

A simple two step procedure for the functionalization of hydrophobic silica aerogel microgranules with europium ions and/or 1,10 - phenanthroline is demonstrated. The activation procedure is based on soaking aerogels in a europium nitrate solution, followed by functionalization with 1,10 – phen...

Crystallochemiluminescence (CCL) has been discovered in the fluorination of Eu(NO3)3•6H2O with xenon difluoride in acetonitrile. It has been found that the following electron-excited particles act as CCL emitters: elemental xenon *Xe (λem = 458 nm), xenon in an intermediate (+1) oxidation state...

Novel red emitting europium-doped lithium nitrate were prepared by using the solid-state reaction, and characterized by the X-ray diffraction and photoluminescence techniques. The characteristic main emission bands from 5D0 to 7F1 (594 nm, yellow) and to 7F2 (615, 625 nm, red) transitions of tri...

Influence of cinnamic acid on the luminescent properties of the europium(III) nitrate with 1,10-phenantroline in a polymer materials was studied. It was shown that combined use of these rare earth complexes leads to intense luminescence in the 400–700 nm region. Samples containing polymer europ...

The lithiation of 1-choro- and 1-bromo-6-chlorohex-1-yne (2, 3) with lithium naphthalene in the presence of benzaldehyde in THF at −78 °C leads after hydrolysis with water to the corresponding chloroalkynol (5) resulting from a regioselective lithiation at the alkynylic position. However, the l...

In this paper, the high-pressure calorimetry was used to monitor the heat of the polymerization of bisphenol-A diglycidyl ether (DGEBA) mixed with a stoichiometric amount of aniline over a wide range of pressure (p = 0.1–350 MPa at T = 298.15 K). To the best of our knowledge, this is the first ...

The development of novel electrode materials for electrochemical capacitors requires innovative approaches with an imperative to produce highly active materials while holding to simple and scalable synthetic approaches. For the first time we have addressed capacitances of polyaniline (PANI) obta...

Squaraines have attracted increasing research attention for organic photovoltaic applications because of their facile and low-cost synthesis, and intense and broad absorption in the visible and near-infrared (Vis-NIR) regions. Herein, three new squaraines, N-phenylanilino substituted SQ-EP, N-2-...

Three oxidants, hypochlorous acid, chlorate and nitrate, were assessed for their ability to oxidise chalcopyrite (CuFeS2). Hypochlorous acid was the most aggressive oxidant trialled, with copper extraction reaching a plateau after 1–5 h. Extraction in this system was complete at room temperatur...

Chlorine remains the most popular method used by the fresh produce industry for decontamination. However, the occurrence of disinfection by-products (DBP) derived from chlorine-based disinfectants has been highlighted as a problem. After recent reports, chlorate residues in fresh produce are of ...

Sodium chlorate is industrially produced by electrolysis of an aqueous salt solution, in which chromium(VI) constitutes an important excipient component. It is added to a concentration of a few grams Na2Cr2O7/liter to the electrolyte and has several functions in the process, the most important b...

In current COD measurement method, we found that sodium chlorate (NaClO3) can effectively reduce the chemical oxygen demand (COD) of minerals processing wastewater (MPW). However, the reduction in COD via the present COD method was only achieved through the interference of NaClO3 with COD measur...

Three-year-old potted longan (Dimocarpus longan Lour. cv. Shixia) trees were treated with potassium chlorate and effects on nitrogen and carbon nutrition were examined. The results showed that potassium chlorate at 10 and 20 g per pot failed to induce flower but suppressed shoot growth and cause...

The growing trend towards the utilisation of biomass to produce fuels and chemicals has the potential to produce large quantities of protein-rich wastes that may be unsuitable for use as a feed. This protein waste could instead serve as a sustainable feedstock for the production of useful nitrog...

A simple and compact microfluidic hydrodynamic sequential injection system with a colorimetric detection has been developed for the consecutive determination of phosphate and ammonium in water samples based on molybdenum blue and Berthelot methods. A light-emitting diode as a light source and li...

In this paper, the thermal calcinations of ammonium tetraborate tetrahydrate (ATT) to boron oxide investigated in fluidized bed calcinatory. Single step calcinations of ATT in pure state gives a puffed product with very low bulk density and the calcination is incomplete since ATT particles compl...

Cannabinoids as THC and the CB1 allosteric modulator CBD were reported to have antiproliferative activities with no reports for other CB1 allosteric modulators as the 5-chloroindole-2-carboxamide derivatives and their furan congeners. Based on the antiproliferative activity of two 5-chlorobenzof...

A simple, cheap, efficient, and metal-free method for one-step synthesis of a library of 1,3-diheteroatom five-membered heterocycles with exocyclic CN and CC double bonds was presented. The convenient reactions proceed via the direct three-component halocyclization of propargylamines, heterocumu...

An efficient and convenient protocol for synthesis of 5-fluoroalkyl-3-(aryl/alkyl)-oxazolidin-2-ones is described. The reaction of allyl (aryl/alkyl) carbamates with fluoroalkyl iodide initiated by sodium dithionite in aqueous acetonitrile resulted in adducts that undergoes a cyclization assiste...