1. Laboratoire de Chimie Inorganique et Bioinorganique, Ecole Polytechnique Fédérale de Lausanne, CH-1015,Lausanne, Switzerland
2. Institute of Chemistry, Academy of Sciences of Moldova, Academiei str. 3. MD-2028 Chisinau, Moldova
3. Department of Chemistry Moldova State University, A. Mateevici str. 60, MD-2009 Chisinau, Moldova