| 1965 – 1971:
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Study of Chemistry at University of Cologne, Germany
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| 1971:
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Diplom in Chemistry, University of Cologne, Germany, Supervisor: Prof. E. Vogel
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| 1973:
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Dr. rer. nat. in Chemistry, University of Cologne, Germany, Supervisor: Prof. E. Vogel
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| 1973 – 1975:
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Postdoctoral Fellowship at University of Florida, Gainesville, FL, USA, Supervisor: Prof. W.M. Jones
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| 1976:
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Research Associate at Ruhr–University of Bochum, Germany, Chair: Prof. W. Kirmse
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| 1982:
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Habilitation in Organic Chemistry at Ruhr–University of Bochum, Germany
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| 1986:
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Professor at Ruhr–University of Bochum, Germany
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| 1988 – 1997:
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Professor of Chemistry at State University of New York at Binghamton, NY, USA
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| 1992 – 1995:
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Chairman, Department of Chemistry, State University of New York at Binghamton, NY, USA
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| 1995:
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Visiting Professor, Max–Planck–Institute for Coal Research, Mülheim, Germany
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| 1996 – present:
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O. Univ.–Professor, Chair of Physical Organic and Structural Chemistry at University of Vienna, Austria
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| 1997 – 2006:
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Adjunct Professor of Chemistry at State University of New York at Binghamton, NY, USA
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| 2007 – present:
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Research Professor of Chemistry at State University of New York at Binghamton, NY, USA
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