1. Institute of Inorganic Chemistry of the ASCR, v.v.i., No. 1001, CZ-250 68 Husinec-Řež, Czech Republic
2. Centre for Theoretical and Computational Chemistry (CTCC), Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, NO-0315 Oslo, Norway
3. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, CZ-166 10 Praha 6, Czech Republic
4. School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K.