1. Department of Chemistry, New Mexico Highlands University, Las Vegas, New Mexico 87701
2. Department of Alkali Halide Crystals, STC ≪Institute for Single Crystals≫, National Academy of Sciences of Ukraine, 60 prosp. Lenina, 61072, Kharkov, Ukraine
3. A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St., B-334, 119991, Moscow, Russian Federation