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  Home > JCE Print > Journal of Chemical Education > Issues > 2006  > March  >
Research: Science and Education
Why the Lower-Energy Term of Singlet Dioxygen Has a Doubly Occupied π* Orbital
Terry S. Carlton
Department of Chemistry, Oberlin College, Oberlin, OH 44074
Cover
March 2006
Vol. 83 No. 3
p. 477
Abstract
The singlet term of dioxygen with one doubly occupied π* orbital has lower energy than the singlet term with two singly occupied π* orbitals even though single occupancy is favored in the aufbau of atoms. A simple physical explanation based on orbital angular momentum explains this double occupancy.
More Information
*  Citation
 Carlton, Terry S. J. Chem. Educ. 2006 83 477.
*  Keywords
 Inorganic Chemistry; Misconceptions / Discrepant Events; MO Theory; Oxygen; Physical Chemistry; Quantum Chemistry; Second-Year Undergraduate; Textbooks / Reference Books; Upper-Division Undergraduate
*  History
 Created:
Last Updated:		 1/31/2006
2/6/2006
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