Latest News

For all the latest news and features, sign up to receive our FREE updates by email:

Your Privacy
Kinetic studies of the reactions between dichlorido(1,2-diaminoethane)zinc(II) and biologically relevant nucleophiles in the presence of chloride

Posted on 16. April, 2018.

The mole-ratio method was used for determining metal–ligand stoichiometry for the reaction between [ZnCl2(en)] (where en = 1,2-diaminoethane or ethylenediamine) and chloride ion at pH 7.2. The results have shown step-wise formation of 1:1 and 1:2 complexes and indicate additional coordination of chloride ions in the first coordination sphere. 

Read more
Kinetics of diffusion-controlled adsorption of adenine and adenosine in a carboxymethyl diaminoethane PVC-mediated column system

Posted on 13. March, 2015.

The interactions of biochemical compounds, such as adenine and adenosine, with chelating resins in fixed-beds have been extensively studied. However, a literature search indicates that there are very few studies concerning the kinetics of ligand adsorption in the continuous mode.

Read more
A QM/MM study of NO oxidation on the nanocrystalline surface of tungsten oxide

Posted on 5. March, 2015.

Nitrogen oxides play a major role in air pollution, particularly in the creation of acid rain and photochemical smog. Among the methods that can be used to capture or eliminate these pollutants are adsorption on the surfaces of metal oxide semiconductors (MOSs) and followed by conversion into other materials.

Read more
Mechanistic investigation of the electrooxidation of catechols in the presence of N-methylbenzylamine at room temperature:synthesis of new quinone derivatives 

Posted on 25. February, 2015.

The term quinone refers generally to a 1,4 or 1,2-diketone formally derived from dihydroxy aromatic compounds in which the two carbonyl groups are connected by a system of conjugated double bonds. Naturally-occurring quinones have attracted attention, because of their bright colour with possible uses as dyes and as drugs.

Read more
Thermal decomposition and kinetic studies of solid riboflavin using model-free methods

Posted on 21. February, 2015.

Riboflavin (vitamin B2) has conjugated double bonds and nitrogen in its ring structure and commercially can be produced by chemical synthesis or microbial fermentation. It is present in most living systems, and in milk, eggs, meat products and vegetables which are essential for normal growth and development of the body, production and regulation of essential hormones, and formation of red blood cells.

Read more
Effect of the gas-phase reaction on hydrogen microcombustion in a Pt/γ-Al2O3 catalytic plane channel with detailed chemical kinetic mechanisms

Posted on 11. February, 2015.

Micro-combustors are emerging as a powerful tool for the portable production of energy. The combustion-based micro-power generation systems may eventually replace environmentally non-benign and expensive lithium batteries in many devices due to the high energy density of hydrocarbon fuels (40 for hydrocarbon fuels versus 0.5 MJ kg-1 for lithium batteries).

Read more
Towards understanding the role of Lewis acid on the regioselectivity and mechanism for the acetylation reaction of 2‑benzoxazolinone with acetyl chloride: a DFT study

Posted on 15. January, 2015.

This paper in Progress in Reaction Kinetics and Mechanism is a theoretical study of the role of the Lewis acid on the regioselectivity in the acylation reaction of 2‑benzoxazolinone with acetyl chloride and has been carried out through DFT calculations at the B3LYP/6-31G** level of theory. 

Read more
Quantum mechanical study on the rate determining steps of the reaction between 2-aminopyrimidine with dichloro-[1-methyl-2-(naphthylazo) imidazole] palladium(II) complex

Posted on 4. December, 2014.

In this work, using quantum mechanics, the mechanism of reaction between 2-aminopyrimidine with dichloro-[1-methyl-2-(naphthylazo) imidazole] palladium(II) complex was investigated. The reaction produces two five-coordinated intermediates which are converted into final products through two possible pathways (nucleophile-dependent pathway and solvent-dependent pathway).

Read more
Efficient heterogeneous catalyst for biodiesel production from soybean oil over modified CaO

Posted on 14. November, 2014.

To solve environmental pollution and the depletion of fossil resources in the world, biodiesel is viewed as a renewable and economic fuel. Fatty acid methyl esters, as biodiesel, derived from seed oils or animal fats, have already been found to be an attractive alternative fuel in diesel engines.

Read more
« 1 2 3 4 5 6 7 »