a
Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
E-mail: george.kostakis@kit.edu
b
X-Ray Unit, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
c
Department of Chemistry, The University of Crete, Voutes, 71003, Herakleion, Greece
d
Laboratory of Inorganic and General Chemistry, Department of Chemistry, University of Ioannina, 451 10 Ioannina, Greece
e
University of Jyväskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyväskyla, Finland
f
Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
g
Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131 Karlsruhe, Germany