Magnetic Material Based on Mixed-Valent Dinuclear Pivalate and Cyanidometalate

M. Mikuriyaa, D. Yoshioka a, R. Mitsuhashi a, D. Luneau b, D. Matoga a, J. Szklarzewicz c and M. Handa d aKwansei Gakuin University, School of Science and Technology, 2-1 Gakuen, Sanda 669-1337, Japan bLaboratoire des Multimatériaux et Interfaces, Université Claude Bernard Lyon 1, Campus de La Doua, 69622 Villeurbanne Cedex, France cFaculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Krakow, Poland dShimane University, Interdisciplinary Graduate School of Science and Engineering, 1060 Nishikawatsu, Matsue 669-8504, Japan

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Mixed-metal complex consisting of ruthenium(II,III) pivalate, ([Ru2(piv)4]+) (Hpiv = pivalic acid), tetraethylammonium and octacyanidotungstate(V) ions, (Et4N)[{Ru2(piv)4}2W(CN)8]·4H2O, was synthesized and characterized by elemental analysis, infrared and UV-vis spectra and temperature dependence of magnetic susceptibilities (2-300 K). The magnetic susceptibilities, zero-field-cooled and field-cooled magnetizations, and AC susceptibility data showed that the present complex is ferrimagnetic with Tc value of 80 K. The field dependence of magnetization exhibited a hysteresis with a coercive field of 17000 Oe at 5 K.

DOI: 10.12693/APhysPolA.131.120 PACS numbers: 75.30.Et