Current Physical Chemistry - Volume 7, Issue 1, 2017

The use of the semi empirical (SE) quantum harmonic approach for calculating the proton's mean kinetic energy, Ke(H), of systems containing hydrogen bonds (HB), is reviewed. The value of Ke(H) provides very interesting information on the proton dynamics, anharmonicity, and quantum effects. This method uses the IR/Raman and inelastic neutron scattering frequencies of the system as input data and assumes the harm Read More

Background: Olivine structured LiMnPO4 is a pioneering energy-storage material of Li+-ion batteries. Its synthesis in a shape of small plates (large free-surfaces) bonding over a C-sp2 surface layer is demanded in harvesting its functional properties. Objective: In situ synthesis of grafted LiMnPO4 of nanopaltes with a C-sp2& surface layer, with tailored impedance properties. Method: A simple hydrothermal reaction is expl Read More

Background: The organic molecules represent one of the most active classes of compounds, and they have been widely used as active materials for important applications. In this study, the organic molecules and their derivatives with electron withdrawing groups in different positions were investigated to elucidate the influence of substituted groups on electronic and optical properties. Objective: In order to guide the synthe Read More

Bisphenol A (BPA) is a monomer that is used in the production of polycarbonate plastics. Polycarbonate plastics are used to manufacture a lot of common consumer goods, including eating utensils. The voltammetric behavior of BPA has been investigated using a modified carbon paste electrode in a Britton–Robinson (BR) buffer. A rapid quantitative determination of BPA in polycarbonate products due to an incomplete p Read More

Cloud point extraction (CPE) was used to extract uranium (VI) from an aqueous solution in acetate media. The methodology used is based on the formation of uranyl-ionic liquid (I) complexes and uranyl-D2EHPA soluble in a micellar phase of non-ionic surfactant (Triton X-100). The uranium (VI) complexes are then extracted into the surfactant-rich phase at ambient temperature. The ionic liquid (IL) used as a chelating agent was Read More

Glycine (Gly) is one of the amino acids, commonly found in proteins, coded by codons GGU, GGC, GGA and GGG. Glycine is the unique non-optically active amino acid. The Gly-ferricyanide reaction catalyzed by Pd(II), under pseudo-first-order conditions, has been spectrophotometrically monitored at the ferricyanide λmax of 303 nm at constant temperature. The experimental rate law for the reaction is: rate = kı [Fe(CN) Read More

Background: The study of the effect of external electric field on the structure and reactivity of fatty acids and their glycerides is now extended to selected derived lipids. Objectives: The present study involves computations of changes in energy and dipole moments, charge density and bond lengths of β-carotene (a carotenoid), cholesterol (a sterol), sphingosine and ceramide (sphingolipids) and phosphatidylcholine (a phosph Read More