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Paradigms and paradoxes: what are the 54 electron affinities of O2?

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Abstract

Only one electron affinity of oxygen, 43(1) kJ mol−1 is generally cited since the molecular orbital theory anion bond order [3/4] gives an electron affinity, 14 kJ mol−1. However, electron correlation rules predict 27 bonding and 27 antibonding spin orbital coupling states. The relative bond orders (RBOs), 12/13 to [1/4] and the 13 valence electrons of superoxide are used to calculate electron affinities 103 to −243 kJ mol−1 consistent with experimental and theoretical values. These are used to construct 54 ionic Morse potentials.

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Authors and Affiliations

  1. Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA

    Edward S. Chen

  2. University of Houston, Clear Lake 2700 Bay Area Blvd, Houston, TX, USA

    Edward C. M. Chen

  3. The Kinkaid School, 201 Kinkaid School Drive, Houston, TX, 77024-7599, USA

    Frank C. Anderson & Sunil Pai

Authors
  1. Edward S. Chen
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  2. Edward C. M. Chen
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  3. Frank C. Anderson
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  4. Sunil Pai
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Correspondence to Edward S. Chen.

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Chen, E.S., Chen, E.C.M., Anderson, F.C. et al. Paradigms and paradoxes: what are the 54 electron affinities of O2?. Struct Chem 23, 407–410 (2012). https://doi.org/10.1007/s11224-011-9862-4

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  • DOI: https://doi.org/10.1007/s11224-011-9862-4

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