1. Department of Chemistry and Pharmacy, Inorganic
Chemistry, University of Erlangen-Nuremberg, Egerlandstraße 1, D-91058 Erlangen, Germany
2. Department
of Chemistry and Biochemistry, Graduate School
of Engineering, Kyushu University, 744
Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
3. Department of Chemistry
and Pharmacy, Theoretical Chemistry, University of Erlangen-Nuremberg, Egerlandstraße 3,
D-91058 Erlangen, Germany