The coupled static approximation is modified for the first time to make it applicable to multi-channels problem of the collision of the proton by alkali atom. The possibility of producing more hydrogen during the proton-alkali atom collision is investigated. The formation of hydr...
Open access
Research Article10.9734/AJOCS/2017/36394
Md. Abdul Mannan, Zahidul Islam, Md. Jakir Hossen, A. B. M. Hamidul Haque, Md. Kudrat-E-Zahan, Shahed Zaman & Debashish Talukder·Asian Journal of Chemical Sciences·2017
Objective: This present study has been undertaken to evaluate the antimicrobial, antifungal and cytotoxic properties of four different fractionates such as petroleum ether, chloroform, ethyl acetate and dia-ion resin adsorbed fractions of Abroma augusta leaf extract. Methodology:...
Open access
Research Article10.9734/AJOCS/2017/35638
A new energy functional is proposed for basis free Density Functional Theory (DFT) calculation. Electronic density is calculated using atomic radii considering the atom as spherical. Ground- state electronic energies and ionization energies of atoms with Z = 1 − 120 are presented...
Open access
Research Article10.9734/AJOCS/2017/34565
Hexaquonickel (II) bis-p-toluenesulfonate [Ni(OTs)2·6H2O] was prepared from the reaction of p-toluenesulfonic acid (PTS) and nickel hydroxide [Ni(OH)2]. Energy disperse spectroscopy, thermal-analysis instrument, infrared spectrometer, and X-ray diffractometer were used to charact...
Open access
Research Article10.9734/AJOCS/2017/35519
Thiocarbohydrazide synthesis is an important intermediate step for many hydrazine organic synthetic reactions. Synthesis of thiocarbohydrazide can be done by reaction of carbon disulfide with hydrazine (hydrazinolysis) in water at 0°C giving 25% yield (based on [hydrazine]). Howe...
Open access
Research Article10.9734/AJOCS/2017/35504
In this article, optical absorbtion and band structure of solid molecular hydrogen at five different phases are reported. Transition pressure for the non-metallic phase to the metallic phase is found at 284 GPA. Phase-IV and phase-V of solid molecular hydrogen are observed as met...
Open access
Research Article10.9734/AJOCS/2017/35484
Ahamefula Anslem Ahuchaogu, A. I. Obike, Chisom Sampson Egedeuzu, P. O. Ukaogo & Okoronkwo Joseph Chukwu·Asian Journal of Chemical Sciences·2017
Phytochemical investigation was carried out on the crude ethanol extracts of the leaves of Spondias mombin. The antibacterial activity of the ethanolic and the Chloroform leaf extract was tested against four bacteria; Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginos...
Open access
Research Article10.9734/AJOCS/2017/34794
The inhibitive/adsorptive behavior of Costus afar leaves extract on the growth of sulphate reducing bacteria and anaerobic corrosion of pipeline steel caused by sulphate reducing bacteria were studied using gravimetric and media absorbance examination techniques. The test organi...
Open access
Research Article10.9734/AJOCS/2017/34792
Jean Pierre Longue Ekon, Jules Lobe Songue, Moïse Ntah A. Ayong, Moses K. Langat, Alain François Kamdem Waffo, Luc Mbaze Meva’a & Jean Duplex Wansi·Asian Journal of Chemical Sciences·2017
The aim of the present study was to carry out the isolation, purification and structural identification of secondary metabolites from methanolic extract of stem bark of Maprounea membranacea and further to evaluate the antimicrobial activity of its fractions. According to the li...
Open access
Research Article10.9734/AJOCS/2017/35033
Thin films of Cu2ZnSnS4 (CZTS) with different molar concentrations of thiourea were prepared on glass substrates using spray pyrolysis technique. The structural, optical and electrical properties of the CZTS thin films were investigated using X-ray diffraction (XRD), UV-vis spect...
Open access
Research Article10.9734/AJOCS/2017/34313