1. Department of Chemistry, Indiana University Northwest, Gary, Indiana 46408, United States
2. Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
3. Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
4. Department of Chemistry, Indiana University Bloomington, Bloomington, Indiana 47405, United States
5. Center for Computational Quantum Chemistry, Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States