[1] Philipps Univ Marburg, Fachbereich Chem, D-35032 Marburg, Germany
[2] Karlsruhe Inst Technol KIT, Inst Theoret Solid State Phys, D-76131 Karlsruhe, Germany
[3] Tech Univ Denmark, Dept Chem, DTU Chem, DK-2800 Lyngby, Denmark
[4] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA
[5] Inst Microelect & Microsyst CNR IMM, I-73100 Lecce, Italy
[6] Ist Italiano Tecnol, Ctr Biomol Nanotechnol UNILE, I-73010 Arnesano, Italy
[7] Hebrew Univ Jerusalem, Inst Chem, IL-91904 Jerusalem, Israel
[8] Tech Univ Berlin, Inst Chem, Theoret Chem Quantenchem, Sekr C7, D-10623 Berlin, Germany
[9] Karlsruhe Inst Technol KIT, Inst Inorgan Chem, D-76131 Karlsruhe, Germany
[10] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
[11] Karlsruhe Inst Technol KIT, Inst Phys Chem, D-76131 Karlsruhe, Germany
[12] Karlsruhe Inst Technol KIT, Inst Theoret Solid State Phys, D-76131 Karlsruhe, Germany
[13] Case Western Reserve Univ, Dept Chem, Cleveland, OH 44106 USA
[14] Friedrich Schiller Univ Jena, Otto Schott Inst Mat Forsch, D-07743 Jena, Germany
[15] Tata Inst Fundamental Res, Dept Chem Sci, Mumbai 400005, Maharashtra, India
[16] Ruhr Univ Bochum, Lehrstuhl Theoret Chem, D-44801 Bochum, Germany
[17] Karlsruhe Inst Technol KIT, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany
[18] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England