The photodegradation of 4-chloro-3,5-dinitrobenzoic acid (CDNBA) in aqueous solution was investigated using advanced oxidation processes (AOP) involving hydroxyl radical production: (i) UV-C photolysis of H2O2 using low or medium pressure Hg arcs (UV/H2O2 process) and (ii) vacuum ultraviolet (VU...

Six new chiral packing materials for high performance liquid chromatography have been prepared from chiral selectors consisting of 4- or 2-chloro-3,5-dinitrobenzoic acid, l-alanine and different π-donor aromatic units. Comparative tests of these newly prepared CSPs on separation efficiency for ...

Quantum chemical calculations of energies, geometrical structure and vibrational wavenumbers of 4-chloro-3,5-dinitrobenzoic acid (CDNBA) were carried out by using density functional (DFT/B3LYP) method with 6-311++G(d,p) as basis set. To determine lowest-energy molecular conformation of the title...

Bioaccumulation of 2,4,6-trinitrotoluene (TNT) and its main metabolites 2-amino-4,6-dinitrotoluene (2-ADNT) and 4-amino-2,6-dinitrotoluene (4-ADNT) leaking from corroded munitions at a munitions dumping site (Kolberger Heide, Germany) was evaluated in transplanted blue mussels (Mytilus edulis). ...

Large-pore-size (150 nm) polystyrene (PSt) microspheres were carboxylated with phthalic anhydride (PA) through Friedel–Crafts acetylation to study the adsorption of 2,4,6-trinitrotoluene (TNT) on this material from aqueous solution. The scanning electron microscope (SEM) images and mercury poro...

The rapid development of fluorescent nanomaterials has broadened a new horizon for the design of easy-to-use and sensitive sensors. Herein, the stable, water-soluble and fluorescent L-Cystine modified copper nanoclusters (CuNCs) were prepared via size-focusing etching method. The maximum emissio...

Since the simple and accurate quantification of 2,4,6-trinitrotoluene (TNT) traces is still a challenge for analytical chemists, we employed a recently developed crossed-beam photothermal lens spectrometer for highly sensitive and selective determination of TNT through a well-known Meisenheimer ...

2,4,6-trinitrotoluene (TNT) and its derivatives are nitrogen-containing aromatic compounds having chemical and thermal stability at ambient temperature and pressure. TNT has high toxicity and mutagenic activity to humans, plants and animals, thus decontamination processes are necessary. Many mic...

This study investigates the fate of sorbed nitroaromatics on the surface of pyrogenic carbonaceous matter (PCM) to assess the feasibility of a PCM-promoted hydrolysis. The degradation of two nitroaromatic compounds, 2,4,6-trinitrotoluene (TNT) and 2,4-dinitroanisole, was observed at pH 7 in the ...

The aim of presented work is to estimate remediation potential of the blue-green alga Spirulina (Spirulina platensis), in particular, its ability to uptake 2,4,6-trinitrotoluene (TNT) that is one of the most widely used military high explosive and a dangerous pollutant of the environment. The ob...

Large amounts of ammunition containing 2,4,6-trinitrotoluene (TNT) and other substances were dumped in the Baltic Sea after WWII. Considering progressive corrosion processes, studying the transformation of TNT occurring in the environment constitutes an important aspect of a possible associated ...

Novel fluorescent anthracene-decorated cyclotri- and cyclotetraphosphazenes (5 and 6) are designed and synthesized, and their chemosensor behaviors against nitroaromatic compounds are examined by UV/Vis and fluorescence spectroscopies for addressing the sensors with cyclophosphazenes for 2,4,6-t...

A series of copper(II) and zinc complexes of 2-hydroxyacetophenone semicarbazones have been prepared and evaluated as superoxide dismutase (SOD) mimetics. The SOD-like activity of parent ligands and complexes were determined by the inhibition of nitroblue tetrazolium (NBT) reduction method, usin...

This paper reports the synthesis, spectroscopic characterizations and electrochemical behavior of the obtained tetradentate copper (II)-Schiff base complex with its two wings as ferrocenylaniline moieties. This new ferrocenic derivative with two ferrocenylaniline entities surrounding the copper ...

Optically pure 1-phenyl-1,2-ethanediol is a very important chiral building block and intermediate in fine chemical and pharmaceutical industries. Reduction of 2-hydroxyacetophenone provides a straightforward approach to access these important compounds. In this study, two enantiocomplementary ca...

ATR-IR measurements were conducted during the adsorption of 2′-hydroxyacetophenone and benzaldehyde from a liquid solution onto a thin MgO film at room temperature. Analysis of the results obtained by multivariate modeling revealed the presence of adsorbed surface species, which are similar in ...

A novel and sensitive derivatization procedure for the determination of 2-cynaoacetamide in pharmaceutical samples using liquid chromatography with the fluorescence detection was discovered. The method is based on derivatization of 2-cynaoacetamide using 2-hydroxyacetophenone as a new derivatiza...

This work presents a combined experimental and theoretical study on new synthesized ONN and ONS chelating 2-hydroxyacetophenone thiosemicarbazone ligands and their nickel(II) complexes with triphenylphosphine co-ligand. The 5-bromo-2-hydroxyacetophenone thiosemicarbazone ligand (L1) coordinates ...

2′-Hydroxyacetophenone was alkylated with a range of substituted benzyl and heteroaryl alcohols to afford the corresponding C-alkylated products in good yields under microwave irradiation. The C-alkylated products were reacted with bromoacetonitrile to afford 2-amino-3-benzyl 1,4-naphthoquinone...

A high solubility in supercritical fluid is desired for performing rapid expansion of supercritical solutions (RESS) to produce particles. Unfortunately, extremely low solubility of polar compounds in supercritical CO2 makes RESS unviable for commercial applications. Liquid cosolvents can improv...