Mohsen Doust Mohammadi, Faheem Abbas, Hitler Louis, Zonish Zeb, Innocent Benjamin
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Exploring the Binding Characteristics of Phosphomolybdic Acid with CH3X (X= F, Cl, and Br) via DFT Calculations
This study investigates the potential use of phosphomolybdic acid (POM) as an adsorbate for hazardous organic gases (CH3X, where X = F, Cl, and Br). Density functional theory (DFT) is employed to analyze the interaction between POM and the gases. Structural optimization using the TPSSh/Lanl2Dz level of theory is performed to determine the stable configurations. The adsorption energy of CH3X on POM is calculated to understand the adsorption capabilities and identify the most favorable complex. The results show that CH3F/POM has two optimal adsorption sites, while CH3Br/POM has a larger bond distance and stronger adsorption energy. CH3Cl/POM exhibits three bonding sites. The HOMO-LUMO energy difference decreases after binding, indicating improved conductivity. QTAIM, bond order, and NCI analysis reveal the inter- and intramolecular interactions and bond characteristics. Overall, POM is found to be suitable for adsorbing these gases, especially CH3Br.
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