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Wavefunctions and Mechanisms from Electron Scattering Processes pp 19–23Cite as

Electron Affinities of Organic and Organometallic Compounds Determined by Means of Electron Transmission Spectroscopy

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Part of the book series: Lecture Notes in Chemistry ((LNC,volume 35))

Abstract

An electron with appropriate energy and angular momentum can be temporarely trapped into a normally unoccupied molecular orbital (MO). At large separation, the electron-molecule interaction is mainly due to an attractive polarization potential and to a repulsive centrifugal potential (associated with the angular momentum of the electron), whose combination gives generally rise to a barrier(1). The typical life-time of these anions is of the order of 10-12 -10-15 s and their formation produces sharp variations (referred to as “resonances”) in the electron scattering cross section. One of the most powerful techniques for the detection of resonances in gas-phase samples is Electron Transmission Spectroscopy (ETS) (2), in the format devised by Sanche and Schulz (3).

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References

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Author information

Authors and Affiliations

  1. Istituto Chimico „G. Ciamician“, Università di Bologna, via F. Selmi 2, 40126, Bologna, Italy

    Alberto Modelli

  2. Istituto dei Composti del Carbonio contenenti Eteroatomi, C.N.R., via Tolara di sotto, 89, 40064, Ozzano E. (BO), Italy

    Giuseppe Distefano, Maurizio Guerra & Derek Jones

Authors
  1. Alberto Modelli
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  2. Giuseppe Distefano
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  3. Maurizio Guerra
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  4. Derek Jones
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Editor information

Editors and Affiliations

  1. Universita di Roma, Dipartimento di Chimica, Città Universitaria, I-00100, Roma AD, Italy

    F. A. Gianturco

  2. Istituto M.A.I, C.N.R., Area della Ricerca di Roma, C.P. 10, I-00016, Monterotondo (Roma), Italy

    G. Stefani

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© 1984 Springer-Verlag Berlin Heidelberg

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Modelli, A., Distefano, G., Guerra, M., Jones, D. (1984). Electron Affinities of Organic and Organometallic Compounds Determined by Means of Electron Transmission Spectroscopy. In: Gianturco, F.A., Stefani, G. (eds) Wavefunctions and Mechanisms from Electron Scattering Processes. Lecture Notes in Chemistry, vol 35. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-46502-4_4

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  • DOI: https://doi.org/10.1007/978-3-642-46502-4_4

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-13347-6

  • Online ISBN: 978-3-642-46502-4

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