| Summary: | 碩士 === 輔仁大學 === 化學系 === 103 === The syntheses, X-ray structures and magnetic properties of a new
trinuclear complex [Mn3O(mhaep)3(MeOH)3]．(ClO4)．MeOH (3), a new
heptanuclear complex [Mn6Na(heamp)6]．3.5CH3OH (4) and a new
heptanuclear complex [Mn6Li(heamp)6]．XClO4 (5) are reported. The
compound (3) is synthesized from compound (1) 2-N,N-[methyl(2-hydro-
xymethyl)aminoethyl]phenol (mhaepH2) ligand and Mn(ClO4)2·6H2O.
The dc magnetic susceptibility and reduced magnetization revealed that
compound (3) has S = 6, D = -0.17 cm-1, E = -0.01 cm-1, g = 1.89 and J =
3.72 cm-1. The compound (4) and (5) are synthesized from compound (2)
2-[N,N-di(2-hydroxyethyl)aminomethyl]phenol (heampH3) ligand, Mn-
(ClO4)2·6H2O and NaClO4．H2O or LiClO4. The compound (4) and (5) are
composed of one NaI or LiI as a centere which surrounding by a hexagon
consisted by six MnIII. The ac magnetic susceptibility measurements
exhibited compound (4) and (5) have out of phase signals, this means that
they have SMM behavior.
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