Ferromagnetic Properties of a Trinuclear Nickel(II) Complex with a Trithiocyanurate Bridge

0337064 - ÚEB 2010 RIV DE eng J - Journal Article
Kopel, P. - Mrozinski, J. - Doležal, Karel - Langer, V. - Boča, R. - Bieńko, A. - Pochaba, A.
Ferromagnetic Properties of a Trinuclear Nickel(II) Complex with a Trithiocyanurate Bridge.
European Journal of Inorganic Chemistry. Roč. 2009, č. 36 (2009), s. 5475-5482. ISSN 1434-1948. E-ISSN 1099-0682
Institutional research plan: CEZ:AV0Z50380511
Keywords : Nickel / Magnetic properties * Bridging ligands * Multinuclear complexes
Subject RIV: CE - Biochemistry
Impact factor: 2.941, year: 2009

A novel trinuclear nickel(II) komplex with N,N,N´,N´´,N´´-pentamethyldiethylenetriamine (pmdien) and a trithiocyanurate(3-) (ttc3-) bridge of composition [Ni3(pmdien) 3(μ-ttc)](ClO4) 3 (1) was prepared. The X-ray crystal structure of 1 was determined, revealing the tris-N,S chelating mode of the trithiocyanurate bridge, forming a regular NiII3 core. A deformed trigonal bipyramidal arrangement of the central atoms was further achieved by coordination of tree pmdien N atoms. The complex show a ferromagnetic exchange interaction among the NiII magnetic center that is tuned by single-ion anisotropy and/or antisymetric exchange. The complex orders ferromagnetically at Tc=10K and exhibits spin-glass properties.
Permanent Link: http://hdl.handle.net/11104/0181151