1. Theoretical Division (MS B268) and Seaborg Institute for Transactinium Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, Scientific Computing and Modeling NV, Vrije Universiteit Theoretical Chemistry, De Boolelaan 1083, 1081 HV Amsterdam, The Netherlands, and Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada