The magnetochemistry of novel cyano-bridged complexes Ln(DMF)(4)(H2O)(2)Mn(CN)(6)center dot H2O (Ln = Tb, Dy, Er)

Using K3Mn(CN)(6), DMF and Ln(NO3)(3) . 6H(2)O (Ln = Tb, Dy or Er), novel cyano-bridged complexes Ln(DMF)(4)(H2O)(2)Mn(CN)(6) . H2O (TbMn, DyMn and ErMn, respectively) were prepared and their magnetochemical properties were studied in detail. A weak antiferromagnetic interaction was found to exist between the rare earth ions and the manganese ion. Er(DMF)(4)(H2O)(2)Mn(CN)(6) . H2O, in particular, exhibits long-range magnetic ordering, a higher critical temperature (T-c = 17.5 K) and a stronger coercive force (H-c = 980 Oe).Chemistry, Inorganic & NuclearSCI(E)EI17ARTICLE3287-2892