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Dixon AR, Xue T, Sanov A. Spectroscopy of Ethylenedione. Angew Chem Int Ed Engl. 2015;54(30):8764-7doi: 10.1002/anie.201503423.
Dixon, A. R., Xue, T., & Sanov, A. (2015). Spectroscopy of Ethylenedione. Angewandte Chemie (International ed. in English), 54(30), 8764-7. https://doi.org/10.1002/anie.201503423
Dixon, Andrew R, et al. "Spectroscopy of Ethylenedione." Angewandte Chemie (International ed. in English) vol. 54,30 (2015): 8764-7. doi: https://doi.org/10.1002/anie.201503423
Dixon AR, Xue T, Sanov A. Spectroscopy of Ethylenedione. Angew Chem Int Ed Engl. 2015 Jul 20;54(30):8764-7. doi: 10.1002/anie.201503423. Epub 2015 Jun 18. PMID: 26088473.
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Angew Chem Int Ed Engl. 2015 Jul 20;54(30):8764-7. doi: 10.1002/anie.201503423. Epub 2015 Jun 18.

Spectroscopy of Ethylenedione.

Angewandte Chemie (International ed. in English)

Andrew R Dixon, Tian Xue, Andrei Sanov

Affiliations

  1. Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721-0041 (USA).
  2. Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721-0041 (USA). [email protected].

PMID: 26088473 DOI: 10.1002/anie.201503423

Abstract

The long sought-after, intrinsically short-lived molecule ethylenedione (OCCO) was observed and investigated by anion photoelectron spectroscopy. The adiabatic electron affinity of its quasi-bound (3)Σ(g)(-) state is 1.936(8) eV. The vibrational progression with a 417(15) cm(-1) frequency observed within the triplet band corresponds to a trans-bending mode. Several dissociative singlet states are also observed, corresponding to two components of the (1)Δg state and the (1)Σ(g)(+) state. The experimental results are in agreement with theoretical predictions and constitute the first spectroscopic observation and characterization of this elusive compound.

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: anions; diradicals; electronic structure; photoelectron spectroscopy; transient molecules

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