CRYSTAL STRUCTURE AND MAGNETIC PROPERTIES OF A Cs3Nb2I9 BIOCTAHEDRAL COMPLEX
S. B. Artemkina1, N. G. Naumov1, A. V. Virovets2, V. A. Daletskii2, S. G. Kozlova1, V. E. Fedorov1
1A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk, Novosibirsk State Research University
artem@niic.nsc.ru
2A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk
Keywords: niobium, cluster, synthesis, crystal structure, magnetic properties, spin-orbit interactionе
Abstract
A cluster complex Cs3Nb2I9 is obtained by a high-temperature reaction of niobium, iodine, and cesium iodide. Its crystal structure is determined: trigonal space group P63/mmc, a = 8.2463(3) Å, c = 19.5419(14) Å, V = 1150.84(10) Å3, R( F) = 0.0614. The compound obtained is characterized by temperature independent paramagnetism in the temperature range 70-290 K.
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