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04.08.1955	born in Jena (Saale)
1978 - 1980	undergraduate studies at the Technische Universität Berlin
1980 - 1981	graduate studies at the Technische Universität Berlin
1981 - 1982	graduate studies at the University of Oklahoma M. S.,University of Oklahoma (J. J. Zuckerman)
30.07.1982	Thesis: "Synthesis Spectroscopic and Structural Investigations of Tin(IV) Compounds"
14.04.1983	Dipl.-Chem., Technische Universität Berlin (H. Schumann)
30.01.1985	Dissertation: "Synthesis and structural characterization of organometallic derivatives of the lanthanides"
1985 - 1988	Postdoc, University of California, Berkeley (K. N. Raymond)
1988	Lecturer Chemical Crystallography, Department of Chemistry, University of California, Berkeley
1988 - 1990	research associate, Institute for Diagnosis Research "Schering AG"
23.10.1991	Habilitation for Inorganic Chemistry Thesis: "Technetium complexes for radiodiagnostic application"
01.03.1992	Professor of Inorganic Chemistry, Freie Universität Berlin
since 01.04.1998	Chair of Inorganic Chemistry, Universität Münster