Abstract This paper gives a systematic covalent bonding analysis of SO3 molecule by employing valence-shell electron-pair repulsion theory, valence bond theory, orbital hybridization, and molecular orbital theory. It proposes that the central S atom in the SO3 molecule is sp2 hybridized. The normal and coordination σ bonds, and a delocalized bond existing in the SO3 molecule are also put forward.
GUAN Fang, ZHANG Jun-Jie, ZHANG Wen, LI Yang, GAO Rui-Xia. Systematic Analysis of SO3 Molecule by Valence Bond Theory[J]. Chinese Journal of Chemical Education, 2020, 41(12): 99-102.
