Reacting [MnIII(5-TMAM(R)-salmen)(H2O) 2](ClO4)3·H2O with [M III(CN)6]3- moieties yields a series of discrete cyano-bridged heterodinuclear complexes, [MnIII(5-TMAM(R)- salmen)(H2O)MIII(CN)6]·7H 2O·MeCN (where 5-TMAM(R)-salmen = (R)-N,N′-(1- methylethylene)bis(5-trimethylammoniomethylsalicylideneiminate; M = Fe (1), Mn (2), and Cr (3)). dc magnetic susceptibility and magnetization studies on powdered samples showed that the MnIII(5-TMAM(R)-salmen) moiety had significant uniaxial anisotropy and that [MIII(CN)6] 3- moieties of 1 and 2 had magnetic anisotropy due to unquenched orbital angular momenta, which significantly affects the magnetic behavior of this system. Frequency-dependent ac susceptibility signals indicated that slow magnetic relaxation was occurring, meaning that 1 and 2 behave as single-molecule magnets.
- Magnetic properties
- Single-molecule magnets