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Activation Energy for the Self-Metalation Reaction of 2H-Tetraphenylporphyrin on Cu(111)

Authors

  • Stefanie Ditze,

    1. Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials, Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen (Germany)
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  • Michael Stark,

    1. Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials, Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen (Germany)
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  • Martin Drost,

    1. Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials, Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen (Germany)
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  • Dr. Florian Buchner,

    1. Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials, Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen (Germany)
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  • Prof. Dr. Hans-Peter Steinrück,

    1. Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials, Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen (Germany)
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  • Dr. Hubertus Marbach

    Corresponding author
    1. Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials, Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen (Germany)
    • Lehrstuhl für Physikalische Chemie II and Interdisciplinary Center for Molecular Materials, Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen (Germany)
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  • We thank the German Science Foundation (DFG) for financial support through SFB 583 and the Excellence Cluster “Engineering of Advanced Materials” granted to the University of Erlangen-Nürnberg. We also thank Dr. Ole Lytken, Dr. Jie Xiao, Michael Röckert, and Dr. Wolfgang Hieringer for fruitful discussions and valuable input.

Abstract

original image

By simply counting individual molecules in STM images after defined heating steps, the kinetic parameters and the activation energy of a complex surface reaction can be determined quantitatively. This procedure was demonstrated for the metalation of 2H-tetraphenylporphyrin (2HTPP) with substrate atoms on a Cu(111) surface.

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