1. Inorganic Chemistry Laboratory Department of Chemistry National and Kapodistrian University of Athens Panepistimiopolis15771AthensGreece
2. Department of Chemistry Missouri University of Science and Technology 65409RollaMissouriUSA
3. Institute of Nanoscience and Nanotechnolgy N.C.S.R. “Demokritos” Aghia Paraskevi15310AttikiGreece