Affiliation: | 1. Institut für Anorganische Chemie der Universität, Marie-Curie-Strasse 11, D-60439 Frankfurt am Main (FRG);2. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingova Nam 2, CS-1160 Prag (Czech Republic);3. Institute of Physical Chemistry of the University, Via Golgi, I-20133 Milano (Italy) |