Magnetic Properties of Ni(II) Complexes of (hydrazone)imine 1,2,3-triketones: Intramolecular Exchange Interaction Y. Shvachko, D. Starichenko, A. Korolev, V. Ustinov, D. Boukhvalov, V. Irkhin, O. Khudina, E. Schegolkov, Y. Burgart, V. Saloutin and O. Chupakhin Published online: 19 November 2008 DOI: 10.1051/names2007036