This study presents a new laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) based U-Pb geochronometric method for dating grossular-andradite (grandite) garnet. Grandite is a primary skarn mineral, therefore dating its growth directly dates hydrothermal activity. As zircon U-...

The methodology for the study of the liquid-liquid-solid equilibrium of quaternary systems has been reviewed and applied to the water-ethanol-1-butanol-sodium chloride system at 25°C. All the equilibrium regions have been systematically studied. Tie-line data have been correlated using a modifi...

The equilibrium solubility of four novel Brønsted-acidic ionic liquids (8-hydroxyquinoline phosphate ([HOQu][H2PO4]), 8-hydroxyquinoline sulfate ([HOQu][HSO4]), 8-hydroxyquinoline methanesulfonate ([HOQu][CH3SO3]) and 8-hydroxyquinoline p-toluenesulfonate ([HOQu][p-TSA])) in six lower alcohols (...

Looking to the pharmacological importance of 8-hydroxyquinolines, in the present study, a novel ligand 5-((1-methyl-1,2-dihydroquinolin-4-yloxy) methyl) quinolin-8-ol (MDMQ) was synthesized by the reaction of 1-methyl-1,2-dihydroquinolin-4-ol with 5-chloromethyl- 8-hydroxyquinoline hydrochloride...

The 8-hydroxyquinoline core is a privileged scaffold for drug design explored to afford novel derivatives endowed with biological activity. Our research aimed at clarifying the antifungal mechanism of action of clioquinol, 8-hydroxy-5-quinolinesulfonic acid, and 8-hydroxy-7-iodo-5-quinolinesulfo...

Certain properties of titania and the ammonium- and proton-form of Y zeolites silica/alumina = 5.2 were explored before and after treatment by triethylamine (TEA). The effect of the triethylamine upon the physical and chemical properties of both titania and the zeolite were characterized by phys...

The polycrystalline perovskite SmMO3 (M = Al, Cr, Co) sensing electrode was synthesized by the sol-gel method, and the NASICON-based sensors attached with SmMO3 were designed and fabricated for triethylamine (TEA) detection. This study investigated the effects of different M3+ ions in SmMO3 and ...

This paper reports the hydrogenation of N-benzylideneaniline catalysed by Pd(II) compounds containing heterobidentated phosphorus-nitrogen (PN) ligands. The general formulas of the catalysts are cis-[PdCl2(L1)] and [PdCl(PPh3)(L1)]Cl (where L1= Ph2PCH2py, Ph2PNCH3py, Ph2PNHpy, Ph2PNHpym and Ph2P...

Asymmetric transfer hydrogenation (ATH) is frequently carried out in the azeotropic mixture of formic acid (F) and triethylamine (T), where the F/T molar ratio is 2.5. This study shows that the F/T ratio affects both the reduction rate and enantioselectivity, with the optimum ratio being 0.2 in ...

Formic acid is a promising hydrogen storage material where hydrogen is generated via metal-catalyzed decomposition. Bimetallic catalysts are active for this reaction, but the mechanism has not been fully proven. Palladium metal supported on gold nanoparticles (Pd-on-Au NPs) has structural proper...

In this work, the mixed-potential-type gas sensor based on NASICON solid electrolyte and MMnO3 (M: Gd, Sm, La) sensing electrode (SE) was developed and fabricated aiming at the low-concentration triethylamine (TEA) detection. The research point of the fabricated sensors mainly concentrated on th...

Silica Amino –Functionalized H2[email protected]2 nanoparticles are shown to boost by >700% the TONs of H2 production by the [Ru/P(CH2CH2PPh2)3] homogeneous catalyst, using Formic Acid (FA) as substrate. Thermodynamic analysis reveals that a significant decrease of the activation energy from Ea...

The rational interaction between the oxide surfaces and aimed gas is favorable for enhancement in gas-sensing (including rapid response and recovery rate, remarkable response value, and excellent selectivity). Herein, we have prepared acidic α-MoO3 nanorods through a facile hydrothermal route. ...

Conversion of levulinic acid (LA) to γ-valerolactone (GVL) over a ruthenium-carbon (Ru/C) catalyst using formic acid (FA) as the sole hydrogen source in cellulose hydrolysis process was investigated. The reaction was accelerated using Ru(5 wt%)/C as the catalyst and by adding triethylamine. The...

A new copper (II) sodium (I) tartrate trihydrate with general formula of [(Na2 Cu2 (C4H4O6) 3 (H2O) 3) 3H2O] (NaCuT) was synthesized and grown from the silica gel. The monoclinic structure and the space group P21 of the as-grown crystal are calculated and non identical with copper tartrate is fo...

In this work, a novel Z-scheme sonocatalyst, KTaO3/FeVO4/Bi2O3, is prepared via ultrasonic-assisted isoelectric point method. The prepared samples are characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectro...

Effective procedures are reported for isolating and producing dimorphecolic acid (1) and its methyl ester (2) from Dimorphotheca pluvialis seed oil. The methods are suitable even for kilogram-scale production. The acid 1 was prepared by enzymatic hydrolysis of the oil and isolated by crystalliza...

Two series of novel 4-chlorophenyl N-alkyl phosphoramidates of 3′-O-(t-butoxycarbonyl)-5-fluoro-2′-deoxyuridine (3′-BOC-FdU) (9a–9j) and 5-fluoro-2′-deoxyuridine (FdU) (10a–10j) were synthesized by means of phosphorylation of 3′-BOC-FdU (4) with 4-chlorophenyl phosphoroditriazolide (7), f...

A series of novel 4-chlorophenyl N-alkyl phosphoramidates of 3′-azido-2′,3′-dideoxy-5-fluorouridine (12–21) were synthesized by means of phosphorylation of 3′-azido-2′,3′-dideoxy-5-fluorouridine (4) with 4-chlorophenyl phosphoroditriazolide (10) followed by a reaction with the appropriate...

In the presence of 1-methylimidazole, 2-N-acyl guanine (as in 4a), thymine (as in 5a) and uracil (as in 5b) residues react readily with the phosphorylating agent derived from 2-chlorophenyl phosphorodichloridate (1a) and 1-hydroxybenzotriazole.