1. Center
of Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.O.
Box 1033 Blindern, N-0315 Oslo, Norway
2. Center
for Computational Science, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
3. Department
of Chemistry, Institute of Theoretical and Computational Chemistry,
Key Laboratory of Mesoscopic Chemistry of MOE, Nanjing University, Nanjing, 210093, People’s Republic of China
4. Department
of Physics, University of Minnesota, Minneapolis, Minnesota 55455 United States