Structural and Solvent Dependence of the Electronic Properties and Corrosion Inhibitive Potentials of 1,3,4-thiadiazole and Its Substituted Derivatives- A Theoretical Investigation
Journal Title: Physical Science International Journal - Year 2017, Vol 16, Issue 2
Abstract
The frontier molecular orbitals (FMOs) are very important for describing chemical reactivity and understanding the static molecular reactivity. The HOMO and LUMO energies of 1,3,4-thiadiazole and its substituted derivatives were calculated using the hybrid B3LYP method with a large polar 6-31G* basis set in vacuum, acetone, ethanol and tetrahydrofuran (THF). It was revealed that substitution at position -2 with -NO2, -CH3, -NH2, -CN and -CH=C(CN)COOH results in enhanced reactivities due to reduction of the energy band gap, Eg. It also altered some important molecular properties like η, S, ΔN, μ, α and β. Substituted -NO2, -CN and -CH=C(CN)COOH may possess better inhibitive potentials and better reactivities than other derivatives on the basis of studied parameters. It was observed that solvent media affect molecular properties.
Authors and Affiliations
O. E. Oyeneyin
A Geophysical Investigation of a Solid Waste Landfill Using Vertical Electrical Sounding Method in Aluu Community, Rivers State, Nigeria
Vertical electrical sounding was conducted at a solid waste landfill in Aluu community for a hydro-geophysical assessment of the contamination of soil and groundwater. The ABEM Terrameter employing the Schlumberger array...
Metastable Non-Nucleonic States of Nuclear Matter: Phenomenology
A hypothesis of the existence of metastable states for nuclear matter with a locally shaken-up nucleonic structure of the nucleus, was proposed earlier. Such states are initiated by inelastic scattering of electrons by n...
A Simple Relative Humidity Sensor Employing Optical Fiber Coated with Lithium Chloride
A simple optical fiber relative humidity sensor was fabricated using a lithium chloride film coated on the distal end of sensing fiber. The sensing element, lithium chloride film whose refractive index is sensitive to mo...
Filter Design and Applications in Image Improvement
This work presents the performance analysis of different basic techniques used for the image restoration. Restoration is a process by which an image suffering from degradation can be recovered to its original form. Remov...
On a Plausible Triple Electro-gravito-informational Significance of the Fine Structure Constant
In the last century, a small minority of physicists considered a hypothetical binary logarithmic connection between the large and the small constants of physics, which also implies a base-2 power law (Fürth, 1929; Edding...