1. Institute of Applied Physics, Moldova State University, Academiei str. 5, MD2028 Chisinau, Republica Moldova
2. Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
3. Department of Chemistry, Biochemistry and Pharmaceutical Sciences, W. Inäbnit Laboratory for Molecular Quantum Materials, University of Bern, CH-3012 Bern, Switzerland