List of Articles HOMO–LUMO energy gap Open Access Article Abstract Page Full-Text 1 - The structural properties of boron and nitrogen adsorption on benzene molecule: a density functional study Samaneh S. Hoseini Edris Faizabadi 10.1007/s40094-015-0167-7 Open Access Article Abstract Page Full-Text 2 - Density Functional Theory studies of purine bases adenine and guanine Leile Rahimi Ahar Zahra Javanshir