1. National Institute for Computational Sciences, Oak Ridge, Tennessee 37831,
United States
2. Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
3. Center for Nanophase Materials Sciences and Computer Science & Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
4. Cherry
Emerson Center for Scientific
Computing and Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
5. Fukui Institute for Fundamental
Chemistry, Kyoto University, Sakyo, Kyoto
6006-8103, Japan