Hybrid-Density Functional Theory, MO Study, and NBO Interpretation of Conformational Behaviors of 2-Halo-1,3-Dioxanes and Their Dithiane and Diselenane Analogs

Nasrin Masnabadia, Davood Nori-Shargha, Fatemeh Azarakhshia, Hadis Zamani Ganjib, Maryam Abbasi Eshlaghia, Salma Karamadc & Gholam Abbas Kasaeid a Department of Chemistry, Arak Branch , Islamic Azad University , Arak , Iran b Department of Chemistry, Pharamceutical Branch , Islamic Azad University , Tehran , Iran c Department of Chemistry, Science and Research Branch , Islamic Azad University , Tehran , Iran d Department of Chemistry, Doroud Branch , Islamic Azad University , Doroud , Iran