1. Institute of Materials and Environmental Chemistry, Chemical Research Center of the Hungarian Academy of Sciences, Pusztaszeri út 59‐67, 1025 Budapest (Hungary), Fax: +36‐1‐438‐1147
2. Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto 606‐8501 (Japan), Fax: +81‐75‐781‐4757
3. The Hakubi Center, Kyoto University, Kyoto 606‐8501 (Japan)
4. Department of Chemistry and Cherry L. Emerson Centre for Scientific Computation, Emory University, Atlanta, GA 30322 (USA)