Abstract
Studying S2X2 compounds is of great importance due to their biochemical, atmospheric chemistry properties and protein structure, and because of the importance of this combination, it has received attention in the review. The compounds of disulfide S2X2 [X: F (1), Cl (2), Br (3)] and their isomers were studied with long-range-corrected functional (LC-ωPBE, LC-BLYP) with basis set Aug/pVmZ (m: 3). The analysis performed for the two forms of product (C2) and reactant (CS) showed that conformation C2 is a more stable thermodynamic parameter due to greater HOMO-LUMO gap and chemical hardness higher. The difference between Gibbs free energy (ΔG) and enthalpy (ΔH), and corrected electronic energy (ΔE0) for compounds 1 to 3 was increasing. The global hardness (η) and electronegativity (χ), ionization energy (I), electron affinity energy (A), and electrophilicity index (ω) were investigated in these compounds. There was a direct relationship between the difference in global hardness and Gibbs free energy.
Published Version
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