1. Inorganic
and Organometallic Chemistry, University Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
2. Anorganische
Chemie, Universität Duisburg-Essen, Universitätsstrasse 5, 45117 Essen, Germany
3. Centre
for Theoretical and Chemistry and Physics (CTCP), New Zealand Institute
for Advanced Stsudy (NZIAS), Massey University (Albany Campus), Private
Bag 102904, North Shore MSC, Auckland, New Zealand
4. Racah
Institute for Physics, The Hebrew University, 91904 Jerusalem, Israel