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Molecular Structure, HOMO-LUMO, MEP and Fukui Function Analysis of Some TTF-donor Substituted Molecules Using DFT (B3LYP) Calculations

A. Bendjeddou, T. Abbaz, A. K. Gouasmia, D. Villemin

International Research Journal of Pure and Applied Chemistry · pp. 1–9 · Published 20 Jun 2016

10.9734/IRJPAC/2016/27066

Abstract

In this letter, through computational study based on density functional theory (DFT/B3LYP) using basis set 6-31G (d,p) a number of global and local reactivity descriptors were computed to predict the reactivity and the reactive sites on the molecules. The molecular geometry and the electronic properties such as frontier molecular orbital (HOMO and LUMO), ionization potential (I) and electron affinity (A) were investigated to get a better insight of the molecular properties. Molecular electrostatic potential (MEP) for all compounds were determined to check their electrophilic or nucleophilic reactivity. The chemometric methods PCA and HCA were employed to find the subset of variables that could correctly classify the compounds according to their reactivity.

Tetrathiafulvalenes density functional theory computational chemistry electronic structure quantum chemical calculations

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