Abbaz, Tahar, Amel Bendjeddou, and Didier Villemin. “Molecular Structure, NBO Analysis, first Hyper Polarizability, and Homo-Lumo Studies of Ï€-Extended Tetrathiafulvalene (EXTTF) Derivatives Connected to Ï€-Nitro Phenyl by Density Functional Method”. International Journal of Advanced Chemistry 6, no. 1 (June 5, 2018): 114–120. Accessed May 5, 2024. https://www.sciencepubco.com/index.php/IJAC/article/view/11126.